[185] He is referring to lists of books printed on vellum or colored paper.

[186] He cites no example of such a bibliography.

[187] He is referring to lists of miniature books.

[188] He probably means bibliographies of religious orders but some of the examples could be put in other classes.

[189] Examples are bibliographies of editions of the Bible, the Imitatio Christi, Ariosto's Orlando Furioso, and Tasso's Gerusaleme liberata.

[190] He includes dictionaries of pseudonyma.

[191] He includes bibliographies of obscene books here, but might perhaps have set up a separate class for them.

[192] This book by Ralph Thomas does not appear in the article "Pseudonyms."

[193] This does not appear in the list of bibliographical journals at the end of the article.

[194] I mention here Winslow L. Webber (b. 1898), Books about Books (Boston, 1937), primarily because of its title. This annotated list of books and articles useful to collectors of incunabula, English and American first editions and rarities, and Americana does not intend to be a general bibliography of bibliographies. Webber's comments are occasionally instructive or entertaining, but his references are distressingly careless. "Pretsholdt's" (p. 19) for "Petzholdt's" speaks for itself. The chapter "Magazine References" (pp. 136-162), which contains a survey of articles published in British and American journals between 1900 and 1937, is perhaps the most useful part of the book.