A Preliminary Bibliography of the Recent Works on Birkat ha-Chamah by Eliezer Brodt & Ish Sefer There are many works and articles on this topic and, as such, this is merely a preliminary attempt to deal with this burgeoning area of Jewish literature. [See also here]. For a great bibliographic note on the development of Seder Birkat ha-Chamah, including publications relating to birkat ha-chamah, see R. J. D. Bleich, Birkat ha-Chamah, pp.128-133. JNUL has put up a many of the editions of relating to subject here, here, here, here, here, here, here, here, here, here, here, here, here, here, here, here, here, here, and here. That's right, the JNUL has 19 editions (!) of the Birkat ha-Chamah starting with the first in 1785 through 1981 Edah Haredit edition.  These editions come from such disparate places as Egypt, Tunis, India, and Iraq.   But, now, turning to the editions currently in print.Boker Yizrach from R. Meldola was reprinted again and it includes a later edition with a Pirush Sharei Mizrach from R. Yekusiel Kamelhar (about him in general see this book).Tekufos ha-Chamah u-Berckoseh of R. Yechiel Michel Tukuchensky was reprinted again. A new work on this topic is called Otzar ha-Zemanim by R. A. Brisk. This work is 336 pages is beautifully type-set, well organized, very strong in halacha and it has a bit on the astronomical aspects of birkat ha-chamah.Another work on this topic is by R. M.M. Gerlitz called Birkat ha-Chamah ke-Hilkhoto. On the prior edition, R. J. D. Bleich writes that Gerlitz's book is the most comprehensive work on the topic. This work is an expanded version of its earlier edition, and is now 558 pages. This work is strong in both astronomy, devoting 190 pages to the topic, and strong in the halacaha aspects. It also has many responsum relating to this topic and includes dershot that were said at prior birkat ha-chama by various Gedolim. In addition, this new edition has many letters to R. Chaim Kanievsky on the topic (a recent "minhag" of all works on halacha). To just mention one interesting discussion which R. M.M. Gerlitz deals with is the Ozstrosver's now famous statement that it is extra special if Birkat ha-Chamah falls out on Erev Pesach (pp.115-18). Another nice addition to R. Gerlitz's revised edition is R. Yakov Emden's comments (pp.479-94) all about birkat ha-chamah. These comments were originally printed in the back of the 1757 edition of Megilat Tannit and were omitted from later editions of Megilat Tannit. As such, R. Emden's comments escaped the notice of many of the people learning this topic. Aside from R. Emden's discussion about birkat ha-chamah, he also deals with the Frankist movement and states that one can inform on them to the government (he also deals with Christianity). However,  R. Gerlitz cuts out a page of this – where R. Emden listed some of the Frankists sins – Gerlitz argues that there is no need  to print this today. Today with the amazing web data base of free seforim at Hebrew books one can see this rare edition here and the pages on birkat ha-chamah here and the edited pages here. One thing lacking from this otherwise excellent edition is a proper index of topics discussed.Another work is called Birkat ha-Chamah be-Tekufoseah by R. Genot. This work is 748 pages and is very strong in the astronomy aspects but weaker in the halacha aspects. On the bibliographical front, it reproduces many different editions of Birkat ha-Chamah. He also includes the comments of R. Emden but in a much more abbreviated form than R. Gerlitz. One interesting thing (p.276) a quote from a manuscript from 745 years ago of how the beracha was recited by the Chazan after Ma'ariv! One big mistake in this work when dealing with the famous question of if the calendar according to Shmuel is off so why do we follow Shmuel's opinion,  R. Genot prints a photocopy of the original Halevonon article of R. Alexander Moshe Lapides he then writes: בעוד שהקושיא בת מאות השנים על אמיתות תקופת שמואל נידונה בספרי האחרונים נתפרסמו מאמרים אחדים גם בכתבי עת, שלא עלו על שולחנם של שלומי אמוני ישראל. הבאונם אך כקוריוז משלים לנושא רחב זה , ואם יש בהם משפטים הנוגדים את מסורתנו, הרי הם דברים שאין בה ממש (עמ' 424). He obviously does not know who R. Alexander Moshe Lapides was – a talmid  chaver of R. Yisroel Salanter and one of leading Litvish Gedolim of his time. As an aside this piece was recently reprinted in the excellent edition of Torat ha-Goan R. Alexander Moshe pp.6-8. Another work is from R. Zvi Cohen called Birkat ha-Chamah, 383 pages. This sefer is like all his others, full of excellent information from a very wide range of sources. This work is expanded from earlier edition and is strong in halacha aspects but not as strong in astronomy. Another work on the topic is called Seder Bircas Kiddish Hachamah by R. Strohli, 203 pages.Of great interest to me in the works of R. Brisk, R. Gerlitz, R. Genot, R. Cohen and R. Strohli [a version of this appeared in the recent Journal Etz Chaim volume 8] is how they list sources of Gedolim throughout the ages how they each did this beracha.  In doing so, these works quote many rare sources although, at times, they overlap each other (next time around someone just has to take all the works on the topic and put it together into one volume). One source which escaped them (except for The Sun Cycle p. 23) is found in a autobiography from the early 1600's where the author describes as follows:  כט אדר שעז בהיותי בק' ורנקבורט נתחדש החמה כי כן נעשה כל כח שנה מחזור החמה ולא נעשה כזאת עוד עד ער"ח ניסין ארבע מאות וחמשה אשרי המחכה ויגיע לימים אלו והלכו כל הקהל בשעה ג' על היום על בית הקברות ויום מעונן היה ועמדתי בתוכם ואמרנו פה אחד ברוך עושה מעשה בראשית (ר' אשר ב"ר אליעזר הלוי, ספר זכרונות, עמ' 7).  Another interesting thing we see from this account is the strange minhag to say birkat ha-chamah in the cemetery or near it. This strange minhag is only mentioned briefly by R. Genot in Birkat ha-Chamah be-Tekufoseah (p. 290) and discussed at greater length by R. Gerlitz in Birkat ha-Chamah ke-Hilkhoto (pp. 231-233) (otherwise I have seen no mention of this strange custom). It seems this was the minhag in Frankfurt according to the Yosef Ometz but R. Chaim Rapoport in Birkat ha-Chamah Al Pei Minhag Chabad (p. 80-81) cites the Alei Tamar who argues that this is an incorrect reading of Yosef Ometz and they did not say the beracha at the cemetery. However from this account we see that they indeed did say it at the cemetery. [See also E. Prins comments on this Yosef Ometz in Parnos le-Dorot, p. 292.]Another work is called Birkat ha-Chamah Al Pei Minhag Chabad, from R. Chaim Rapoport 167 pages. This edition includes a section of the halachot in English. Of special interest in this work of R. Rapoport and that of R. Strohli is their sections dealing with women and this beracha. In English, there is  R. J. D. Bleich, Birkat ha-Chamah, 243 pages. This work is extremely well written, as R. Bleich excels at making extremely complicated things sound easy.  It deals with astronomy and halacha aspects very comprehensively for scholar and layman alike. Just to mention one interesting source, not only related  to birkat ha-chamah, is that when discussing aleinu and the censorship of the statement  שהם משתחוים להבל וריק ומתפללים אל אל לא יושיע that the Mahril Diskin held one has to be careful to say it because of משנה ממטבע שטבעו חכמים בברכות. R. Bleich writes that he saw in the siddur of R. Reven Grozovsky that this phrase was written in the siddur. Just one complaint with this particular edition is it is very annoying the way the pages are set up as a Hebrew book even though it is written in English making the pages confusing going from one page to the next. Additionally, one thing lacking from this otherwise excellent edition is a proper index of topics discussed. Another work also in English is from R. Yehuda Hershkowitz, The Sun Cycle, 213 pages printed by Tuvia's. The strength of this work lies in its uniqueness not to merely retread the same ground the above works deal with.  R. Hershkowitz, notes in the introduction that he does not see any point in replicating the seforim already out there on the topic. Instead, he chose to deal with the deeper meaning of the prayers and the beracha in general. He has extensive comments on the tefilos (according to kabbalah and machasvah). He also includes an excellent in depth chapter about the astronomical aspects of this topic. Most of the book is in English but he includes all the tefilos in Hebrew with a translation, notes and an in-depth scholarly chapter on the sugyah in Berkhot, regarding birkat ha-chamah, discussing the Bavli, Yershalmi and Tosefta. One thing lacking from this otherwise excellent edition is a proper index of topics discussed.
One interesting aspect in this work is as mentioned most of these works provide (just some better than others) accounts showing different birkat ha-chamah accounts through out history. Hershkowitz shows that the earliest possible source is from about 1300 years ago in various early paytanim (see The Sun Cycle p.15). Another interesting discussion which he deals with is the definition of the word סלה that it might mean refrain meaning repeat, which means it was intended for the choir to repeat it (see The Sun Cycle pp.68-70).

One interesting point regarding birkat ha-chamah is that although we hold that one makes the beracha with shem u-malchut, the Maharal did not. An explanation for the Mahral's practice appears in R. Moshe Kunitz's Ben Yochai:ומהאי טעמא נראה שהגאון האדיר אבי זקני מהר"ל מפראג ז"ל היה מברך ברכת קידוש החמה בלא שם ומלכות, לפי שבערוך (ערך חמה) כ' ב' פירושים אהא דתני ברכות נט רע"ב הרואה חמה בתקופתה מברכין וכו' ולפי הב' אשתמיט מאמר אביי שם בש"ס ישינם לכן נראה דברכה קבועה כל כח שנין איתקין אחר חתימת התלמוד ומש"ה לא בירך בשם ומלכות (בן יוחאי, שער שבעי סי' רפא, דף קמא ע"א).  
What is even more interesting is this account is referenced by R. Akiva Eiger who quotes it in his notes to Shulcahn Orach O.C. 229:2. The reason why this is interesting is because of who R. Kunitz was.  In particular, he had very strong Haskala leanings and was even linked with R. Aaron Chorin a leading figure of the early Reform movement. R. Moshe Sofer referred to Chorin as Acher as a play on Chorin's name and, in R. Sofer's view, Chorin's opinions.  In part, Kunitz's connection to the Reform movement is based on a letter that appears in Nogah Tzedek.  Nogah Tzedek, printed Dessau, 1818, is written to justify various changes such as the using the Sefadic pronunciation, doing away with the silent Shemoneh Esreh, and the inclusion of musical instruments, such as the organ, even on Shabbat.  At the end of this volume, pp. 27-28, Kunitz's letter addressing these issues appears.  On the first issue, the Sefardic pronunciation, Kunitz says this is fine, and notes that R. Nathan Adler (R. Sofer's Rebbi) used the Sefardic pronunciation. Regarding abolishing the silent amidah, he is against this. Regarding the final issue, the use of music, Kunitz again takes a permissive view and allows for musical accompaniment, although he doesn't discuss Shabbat. 
The "Traditional" response to Nogeh Tzedek (and its related works) was not short in coming. The traditionalists banded together sending out letters and collected the responses in a single volume, Eleh Divrei ha-Brit, Altona, 1819. On this aspect see M. Samet, Ha-Chadash Assur min ha-Torah pp.241-42 (and index) and this thread, this thread, and this thread.Returning to Kunitz's work, Ben Yochai, one of the aspects of this work is explaining why some time Rashbi is referred to as ר' שמעון and others as ר' שמעון בר יוחאי. His basic theory is that before he went into cave he is referred to as ר' שמעון and only after the cave is he called בר יוחאי. Indeed, on the title page of the book there is an illustration of the "cave."  In truth, however, this theory is a mistake as Yechosei Tannim Vamorim the Rebbe of the Rochach writes just the opposite:  וכן דברי ר' שמעון בן יוחי ורוב פעמים דברי ר' שמעון אלא כולן בבחרותן קודם שהובהקו לרבים ולכשנעשו ראשי ישיבות הוזכרו סתם (יחוסי תנאים אומוראים, מהדורת מימון, עמ' שצא). Another large part of Ben Yochai deals with R. Yakov Emden's comments on the Zohar in Mitpachas Seforim.  R. Kunitz answers each one of R. Emden's 280 comments. A more recent attempt to deal with R. Emden's criticisms of the Zohar was mounted by  R. Reuven Margolis in his notes to his edition of the Zohar, Nitzotei Zohar. See R. Zevin excellent review on Margolis's Zohar in his Soferim Ve-Sefarim, (Midrash ve-zohar …, pp.31-32).  Yet at the same time, R. Margolis writes in Arshet 2, pp. 336-337 that one has to check carefully into each thing which Kunitz says. It is not only R. Margolis that question Kunitz's work.  Rosenthal in his excellent bibliography, Yodeah Sefer, comments on the Ben Yochai: ואתה הקורא בראותך את ספר הגדול למראה הזה עם כל אורך לשונו ובקיאותו לעור עין כל קורא, אל תבטחבו ואל תשע אל דבריו. לך נא וקרא בדברי המחברים אשר באו אחריו כמו בספרי כרם חמד, תעודה בישראל, בית יהודה, ושרשי לבנון והוא מחברת הראשונה מבית האוצר, ופרחי צפון, וכלם יענו ויאמרו כי כל דבריו הבל ואין בהם מועיל, וכל דבריו הטובים אשר נמצאו בספרו, אשר בהם התראה לעין הקורא כבקי בכל ספרי העברים, גנב מספר סדר הדורות.
On this work of Kunitz in general see Boaz Huss, Ke-Zohar ha-Rokiyah, pp. 321, 333, 343-44.

In the fascinating sefer (subject of its own post hopefully shortly) on Zohar called Matzav Hayashar by R. S. Z. Dober, Dober accuses Kunitz many times of plagiarism (1:2a, 7a). The only compliment R. Dober gives Kunitz is that he had a nice library (2:60) and that R. Dober is a good judge of that as he had a great library too.  Kunitz's work Ben Yochai is quoted by many just to list a few Shut Sich Yitzchak (67,116, 414, 464), Shut Afrekasta Danyah, (1:1&27) and R. Ovadiah Yosef in all his seforim. In the incredible sefer Ha-Meir Laretz he has a few comments on his Teshuvos Hamesaref (see pg 85a). Another work of Kuntz is Ma'ashe Hakhamim, Beis Rebbi, Vienna, 1805.  This work is a biography of R. Yehuda ha-Nasi, Rabbenu ha-Kodosh.  An abridged version, titled Toldot Rebbi Yehuda ha-Nasi, appears at the beginning of the Tifferet Yisrael Mishnaot.  Although, in the latest version of the Tifferet Yisrael, Zekher Hanoch edition, the Toldot have been removed.  According to the publisher, Moznayim, it was Kunitz's reputation that was cause for removal.  Ironically, in this latest edition, the publishers seem to have overlooked a much more controversial statement in their edition. There is an article titled, Ma'amar 'al Dikduk Lashon ha-Mishna that includes a footnote that argues that many parts of Kohelet were written later than the traditional dating. See p. 13b, note *. (Thanks to Dr. Marc Shapiro for calling this to my attention.)  This passage remains in the Zekher Hanoch edition. While Ma'ashe Hakamim, until recently, received widespread dissemination through the inclusion in the Mishnaot, not everyone felt it was a worthwhile sefer.  Indeed, Rosenthal, again in Yodea Sefer is very critical of this work, as well as Kunitz's other work, Sefer ha-Iyun.  See Yodeah Sefer, letter Bet, no. 224, and letter Mem, no. 1208.  The only sefer of Kunitz that escaped Rosenthal's wrath is Kunitz's Ha-Matzref, although Rosenthal doesn't have any entry for that work at all. 

Review: Ma'amar al Yishma'el
by Eliezer Brodt & Ish Sefer  Solomon Ibn Aderet, Ma'amar al Yishma'el, Bezalel Naor ed., Spring Valley, NY, 2008, 178 pp.
Bezalel Naor, Mitsvat Hashem Barah, Spring Valley, NY, 2008, 220 pp.
  R. Bezalel Naor, who has published a host of translations and explanations of R. Kook's writings, as well as Post Sabbatian Sabbatianisms, discussing Sabbatean works, has published two works in a single volume. The first, Ma'amar al Yishma'el, is a critical edition of R. Solomon Ibn Aderet's (Rashba) discussion of Islam.   This work was printed from manuscript (which today is lost) for the first time in 1863 by Y. Perles. Most recently it was printed in the new Shut ha-Rashba by Machon Yerushalayim in their last volume (siman 367). At first it was not accepted that Rashba authored this work but today it is accepted that  he is indeed the author. Naor's edition begins with an excellent introduction dealing with amongst many things the authorship of this work, Naor raises the possibility that R. Dovid who was a talmid of the Ramban was the author. Throughout the text he brings various proofs about the authorship from other writings of the Rashba. As an appendix Naor printed a copy of a manuscript of Steinschneider where he deals with the authorship of this text.   The main topic of this work is about the Rashba defending the Torah from an Islamic attack. Although much has been written on Jewish Christian disputes, when it comes to Jewish Islamic disputes, much less is written or known. Indeed, most are probably unaware that the Rashba wrote this work defending Judaism against Islam. Naor's edition begins with an excellent introduction discussing the work generally and specifically providing background materials on exactly what the Rashba was responding to.  Naor discusses both the Jewish as well as Islamic sources in all languages. It is pretty incredible to see his command in both these groups of sources, it is clear that much time and hard work went into preparing this work.   The main topic which the Rashba deals with is defending that the Torah which we have is 100% accurate and was never tampered with. The Rashba deals with many specific examples in a very orderly fashion. Specifically, the Rashba elaborates why the torah publicized what seems to be sins of Reuven (p.74) and Yehudah (pp. 73-74). The Rashba also deals with why the torah had to include the story of Lot and his daughters (pp. 72-73). Another issue that the Rashba defends is proving that the numbers of the Jews given by the Torah was 100% accurate (pp. 63-71). Additionally, the Rashba deals with the famous incident of the finding of the Sefer torah in Yoshiayhu's time. There are also many Chidushim with regard to the seven Noachide commandments.   Regarding why Hashem chose to give the Torah publicly the Rashba writes (p. 90):והתבונן כי בשתי תורת האלו, רוצה לומר, תורת בני נח ותורת משה עליו השלום לא רצה השם יתברך שיקבל אותם ממנו נביא, ויקבלו אותם מן הנביא שאר העם. וזה לשתי פנות גדולות האחד: כדי שלא יוכל אחד ממי שנתחייב באורה התורה, להסתפק בקבלתה, ולחשוד מי שקבלה, שבדה מלבו, או ששבש בם קצת… והשניה, כדי שלא יוכל לשבש בדת ובאמונה לאחר זמן, ויטעון שהשם יתברך נתן עתה על ידו תורת כן וכן, כמו שנתן תורה ראשונה מתחלה עד יד הנביא פלוני אשר קדמו. אלא קבץ כל הנמצא באותו זמן ונתן רוחו עליהם והתנבאו…   Naor already points out that although this is similar to the proof offered by the Kuzari, however, this proof has a new addition to it as it includes the notion that the ז' מצות בני נח were also directly and publicly given by God!    Besides for the actual main topics that the Rashba deals with and its great importance (as he is one of our most important Rishonim) there is also a wealth of interesting side points and discussions in this work.   Amongst the many important points that the Rashba writes is that although we find many times about the Torah that the Gemarah says שכחה התורה וחזרה ויסדה (one of example of this is by with Ezra). The Rashba explains at great length that it does not mean the Torah was almost completely forgotten at these times. Rather all of torah is connected and if one thing is forgotten it is as if everything is forgotten so Ezra prevented this from happening (pp. 100-05). With this the Rashba explains many things amongst them the famous Gemarah in Pesachim (66b)תנו רבנן: הלכה זו נתעלמה מבני בתירא. פעם אחת חל ארבעה עשר להיות בשבת, שכחו ולא ידעו אם פסח דוחה את השבת אם לאו. אמרו: כלום יש אדם שיודע אם פסח דוחה את השבת אם לאו? אמרו להם: אדם אחד יש שעלה מבבל, והלל הבבלי שמו, ששימש שני גדולי הדור שמעיה ואבטליון ויודע אם פסח דוחה את השבת אם לאו. שלחו וקראו לו. אמרו לו: כלום אתה יודע אם הפסח דוחה את השבת אם לאו? אמר להם: וכי פסח אחד יש לנו בשנה שדוחה את השבת? והלא הרבה יותר ממאתים פסחים יש לנו בשנה שדוחין את השבת. אמרו לו: מנין לך? אמר להם: נאמר מועדו בפסח ונאמר מועדו בתמיד. מה מועדו האמור בתמיד – דוחה את השבת אף מועדו האמור בפסח – דוחה את השבת. ועוד, קל וחומר הוא: ומה תמיד שאין ענוש כרת דוחה את השבת, פסח שענוש כרת – אינו דין שדוחה את השבת. מיד הושיבוהו בראש ומינוהו נשיא עליהם, והיה דורש כל היום כולו בהלכות הפסח. התחיל מקנטרן בדברים, אמר להן: מי גרם לכם שאעלה מבבל ואהיה נשיא עליכם – עצלות שהיתה בכם, שלא שמשתם שני גדולי הדור שמעיה ואבטליון. אמרו לו: רבי, שכח ולא הביא סכין מערב שבת מהו? אמר להן: הלכה זו שמעתי ושכחתי. אלא, הנח להן לישראל אם אין נביאים הן – בני נביאים הן. למחר, מי שפסחו טלה – תוחבו בצמרו, מי שפסחו גדי – תוחבו בין קרניו. ראה מעשה ונזכר הלכה, ואמר: כך מקובלני מפי שמעיה ואבטליון. Many people have discussed this Gemarah throughout the ages (its was a popular derasha topic for Shabbat HaGadol) how could they forget such a thing? The Rashba explains it with his same theme. Here to Naor includes an excellent lengthy footnote dealing with this Gemarah providing many sources.  Another important statement of the Rashba (pp. 116-17) is:כל שכן ספר כולל מה שהוא ומה שהיה ועתיד להיות כתורתנו השלמה והתמימה שכוללת מן החכמה כל מה שהיה מן הבריאה הראשונה עד תכלית כל חכמה. ואפילו בא נביא מן הנביאים לכתוב בפרטי כל מה שתרמוז בה לא יכיל גליון וכן בפירושי מצותיה.    When talking about Rabbenu Hakodesh role in the writing of the Mishna he writes (p. 119): והודיעונו יתרון חכמת רבינו הקדוש בסדור ספרו סדר המשנה חברו בתכלית החכמה בקצור ובסדור בסתם ואחר כך מחלוקת ומחלוקת ואחר כך סתם וכולל ענינים גדולים בדברי קצתם.   Although, as mentioned above, the notes are generally excellent there is comment that deserves to be discussed. The Rashba referring to a Gemrah in Mesectas Pesachim calls (p. 103) it מסכת פסח שני. Here, Naor does not explain what the Rashba meant. The intention of the Rashba is that many rishonim called the part of Pesachim which deals with Korbon Pesach, Pesach Shenei, and referred to the first part of Pesachim that deals with Chametz and perek Arvei Peachim as Pesach Rishon. This fact was not known to everyone see for example Hagadah Shelemah (p.197) where it is pointed out that the Abarbanel was not aware of this and made a mistake because of this. [See also R. N. Rabonowitz, Mamar Al Hadfosass Hatalmud, p.27]. The Merei writes (Peachim 57b):אמר מנחם בן שלמה לבית מאיר י"א זאת המסכתא ר"ל מסכת פסח שני היא מסדר מועד וכבר ביארנו בפתיחת החבור שבסדור רבינו הקדוש ע"ה היו מסכת פסח ראשון וזאת המסכתא חוברות אשה אל אחותה נכללות במסכתא אחת נקראת פסחים ופרק ערבי פסחים היה אחרון לכל פרקיה ובימי הגאונים ז"ל חלקוה . לשתים וקראו הראשונה פסח ראשון והעתיקו פרק ערבי פסחים ממקומו וסדרוהו בסוף פסח ראשון וקראו שם המסכתא הזאת פסח שני ועל זה הצד הורגלנו בלמודה אחר מסכת פסח ראשון על הדרך שסדרנו בפתיחת החבור והיא כוללת חמשה פרקים וסדרם לפי שיטתנו…
Another nice piece is (p. 67): יש לנו להשיב ולומר שלא כל התולדות אשר היו להם זכר הכתוב רק מקצת מהם או מקצת מן הנזכרים ואף על פי שהיו להם או למקצתם בנים אחרים רבים מאלה, אלא שלא זכר כאן רק אותם שהיה הצורך מביא לזכרם, מפני שאלה היו ראשי בית אבות למשפחותם והאחרים בלבד יקראו על שמם כאשר קרה ליוסף שלא זכר הכתוב מכל בניו רק מנשה ואפרים…   The text of Ma'amar also contains extensive footnotes which provide the sources for the Rashba's statements as well side discussions. In the final section of this work, Naor explores, in greater detail, some issues he raised in passing in his notes. Just to mention a few of the many topics he deals with in the notes and appendixes (with just a few additional sources). These topics are rather eclectic ranging from the Ramban's position regarding the Ibn Ezra (pp. 136-143). In the introduction Naor has another nice discussion about the Ibn Ezra's position regarding the authorship of the Torah (pp. 23-28) although many deal with this topic Naor has some new important points based on some manuscripts showing what R. Ezra of Gerona, the Rebbe of the Ramban, thought of the Ibn Ezra. Other issues he deals with in regard to the Ibn Ezra are with his work the Iggeres ha-Shabbat (p. 141 n.578) [see also Ohr Yisrael 54:238] and additions which were put in by others in his works (p.142 n.582) [see also my Bein Keseh Lassur (Jerusalem, 2008), p. 53]. Others issues Naor deals with: did the Rashba know Arabic (p.21 n.24), the authorship of the classic Kabbalah work Mereches Aleokus (pp. 53-55). It is interesting that the Rashba always refers to Muchamed as Meshugah (see the note on p. 61-62 about this) [One can add to this Marc B. Shapiro, Studies in Maimonides and His Interpreters (Scranton and London: University of Scranton Press, 2008), 151-52]  Another great note is about R. Abraham Ben Ha-GRA whose usage of very rare editions of the Talmud (pp. 72-72 n.236), and also about Ba'al Tosef on Taryag Mitzvot and the seven Noahide Laws (pp. 86-90). These are but a few samples.In the introduction Naor writes that only after he completed working on this sefer did he find out that Chaim Zalman Dimitrovsky printed it already with notes – had he known he never would have bothered working on it. As is obvious, Naor has a tremendous command of the sources in Hebrew and academic world and he did incredible research for this work yet he never discovered the well known source where most should begin with when working on the Rashba – Dimitrovsky's works. It was good that he only found it at the end as he did a beautiful job dealing with many many things which Dimitrovsky did not, making it very worth while that he too worked on this sefer.   One minor piece of criticism is that Naor makes paragraph divisions between each section giving each chapter a heading.  While this is very useful, Naor does not explain that these are his creation and not the Rashba's and thus can cause some confusion.  For example, on page 120 he quotes a piece from Yigdal which would be a nice early source but after checking it out with other versions of the Mamar its clear that Naor himself added this in -to be helpful.  The second book included in this volume is Mitzvat Hashem Barah. This book deals with the seven Noahide commandments. Rather than dealing with the actual commandments – i.e. a mere list – this book delves into rather interesting issues that surround these laws. For example, Naor has a fascinating discussion regarding R. Hayyim Hirschensohn's opinion that all commandments can be adduced logically. This discussion implicates what obligations there are in absence of specific commandments or, in the classic parlance, what happened before Matan Torah (pp.72-83). As an aside although it is very useful that he quotes the exact lengthy pieces of Hirschensohn he says he is doing so as they are very rare seforim. Although it is true that a hard copy of the seforim are hard to get but anyone can access them today thanks to Hebrew books.

Naor also presents the controversy between R. Jacob Emden and Moses Mendelssohn regarding the Noachide laws (pp. 16-34). While some maybe aware of the correspondence R. Emden had with Mendelsshonn regarding determining the time of death (see Moshe Samat's article in Hadash Assur min ha-Torah (Jerusalem: Dinur Center & Carmel Publishing, 2005), 157-227), most are not aware of this important philosophical debate. For two additional scholarly sources to this topic not mentioned by Naor, see the important unpublished paper of Professor Lawrence Kaplan, "On the Boundary between Old and New: The Correspondence Between Moses Mendelssohn and R. Jacob Emden," delivered at the Jewish Thought in the Eighteenth Century conference, Harvard University (Spring 1984), and the extensive discussion in chapter seven of Jacob J. Schacter, "Rabbi Jacob Emden: Life and Major Works," (PhD dissertation, Harvard University, 1988), 661-747 ("The Emden-Mendelssohn Correspondence"), and see esp. 720n3 for citations to previous descriptions of the correspondence, and also 725n37, 726n48, 742n150, 743n165, 744n168, where he discusses Kaplan's paper. Naor adds much to this topic. After these discussions, Naor then provides insights on the various Parshiyot ha-Torah that implicate Noahide laws especially before Matan Torah. Again the topics covered and, more importantly, the manner in which they are covered are terrific in scope and depth. His command of the "Yeshivish" sources along with Kabbalah (pp.97-102) and hasidut is excellent. Although much has been written on this topic of seven Noahide commandments especially before Matan Torah including a massive sefer (in size) called Birkot Avot and a recent pamphlet Mebei Medrasha from R. K. Redisch, Naor brings many new things to the table not dealt with before.
Here to he has many great footnotes scattered throughout the sefer some strictly for the sake of a very side footnote one such example is on pp. 5-6 about the Tosafot Yom Tov which writes (Nazir 5:5):והכוונה בודאי ממאמר מי שלא נתקיימו דבריו הוא מה שאמרנו עכ"ל. ונתקיימו דבריו. אע"פ שבגמרא לא פירשו כן. הואיל לענין דינא לא נפקא מינה ולא מידי. הרשות נתונה לפרש. שאין אני רואה הפרש בין פירוש המשנה לפירוש המקרא שהרשות נתונה לפרש במקראות כאשר עינינו הרואות חבורי הפירושים שמימות הגמ'. אלא שצריך שלא יכריע ויפרש שום דין שיהא סותר דעת בעלי הגמ':   He brings a few sources that a סברא is דאורייתא (p.78 n.180) Just to add one obscure source to his list see R. Avraham Grodzensky in Torat Avraham (p.264) who writes:גם סברת האדם ושכלו הפשוט כמקרא מפורש הוא, ואדרבה כל סברא פשוטה ביותר מפורש הוא ביותר כאשר נבאר איתא בב"ק (מו:) מניין להמוציא מחבירו עליו הראיה… מתקיף לה רב אשי הא למה לי קרא סברא הוא… קושיא זו של רב אש אינה על סברא שדעת התורה והשקפתה כלולה בה, אלא על סברא פשוטה שהולה מבקש את הרופא מפני שמרגיש את כאביו ואל סברא זו מקשה…
One point of interest although this could really be nothing when Naor quotes Mendelssohn (pp.16-34) and Weisel (p. 19 n. 48, 200-203) in the text of the sefer he brings there name in abbreviation one suspects it has to do with fear for citing their names openly only in the notes (p.22 n.51) which much less people read does he quote Mendelssohn by full name.

On page 69 he deals with a Rambam who says יראה לי explaining that when ever the Rambam uses such language he is saying his own hiddush. It is surprising that although through out  this work Naor demonstrates great bekiyut in the works of the Aderet here he does not mention in the notes that he composed a work on all the Rambam's that say יראה לי recently reprinted by Ahavat sholom called Teshuvah Meyerah and more importantly he deals with this Rambam. One weakness is neither of these two works in the volume have an index which would have been rather useful as there are many many topics of interest in this sefer and one can not find them easily.   

Finally, it is worth noting that the book itself is rather nice to look at in part due to the color cover depicting a Spanish synagogue scene from the period of the Rashba. All in all this work is well worth owning and reading carefully.

The book is available in Jewish bookstores in Baltimore, Boston, New York and Pittsburgh or via the Orot website, with a special offer here.