The specimens given for every class may with very little trouble be doubled and redoubled. But it is not my intention to reproduce here whole catalogues. Reggio thinks all such titles, which do not correspond with the context of the book, absurd and confusing. He suggests that the Jews followed in this respect the Arabic writers. There is no doubt that Reggio is not altogether wrong in his complaint. Almost all the titles included in class vi., as the reader might have observed, never indicate to the student the subject of which the books treat. How can one guess that the Responsa, the Dance of Mahanaim (two companies), is of a polemical nature against the tendencies of reform? This list may be lengthened by hundreds of titles. But even these incomprehensible titles are better than the _Chad Gadyah Lo Israel_ (One Kid No Israel),(236) the un‐Hebrew title of a pamphlet trying to prove the un‐Jewish origin of the well‐known folk‐song sung on Passover Eve. But, on the other hand, it must not be overlooked that even this class has, though not always, something suggestive and even practical about it. The “Choice of Pearls” is undoubtedly more attractive than the prosaic “Collection of Proverbs and Sayings,” which is what the book contains. “Understanding of the Seasons” (1 Chr. xii. 32), sounds also better than the simple “Collection of Sermons on different occasions.” “The Lips of those who Sleep” recommends itself as a very suggestive title for a catalogue, especially when one thinks of the Agadic explanation given to Cant. vii. 10, according to which the study of the book of a departed author makes the lips of the dead man to speak. Such titles as “Bunch of Lilies” for a collection of poems are still usual with us. Such a title as the “Jealousy Offering,” or the “Law of Jealousies,” in polemical literature is very appropriate for its subject. R. Jacob Emden, who named one of his pamphlets “Rod for the fool’s back” (Prov. xxvi. 3), will be envied for his choice by many a controversialist even to‐day. Wittily devised is the pun‐title, “City of Sihon” for a mathematical book by R. Joseph Tsarphathi, alluding to Numb. xxi. 27, “For Hesbon (reckoning) is the City of Sihon.” Other titles were probably intended more as mottoes than titles. “Go forth and behold, ye daughters of Zion” (Cant. iii. 11), is put in the title‐ page of R. Jacob’s German‐Jewish paraphrase of the Pentateuch, which was written chiefly for the use of ladies. “Let another man praise thee and not thine own mouth, a stranger and not thine own lips” (Prov. xxvii. 2), forms the title of a book extending over only one and a half page in quarto. It contains letters by seven Rabbis (among them R. Liva of Prague) recommending the Ascetic, R. Abraham Wangos, who has a daughter to marry, and wants also to make a pilgrimage to the Holy Land, as deserving the support of his brethren.