Labbé's original plan survived without substantial change in Teissier's revision of 1686 and supplement of 1705. In the _Auctuarium_, the fourth index, "Writers on Various Subjects (De variis argumentis scriptores)," has grown enormously. If Teissier had given any attention to remaking the structure of the book, it might have suggested to him the idea of an alphabetical subject index. He has no longer adhered strictly to listing bibliographies in terms of men who specialized in various subjects but shifted somewhat in the direction of an emphasis on the subject. He could have introduced many practitioners of various arts and sciences into the first index, but his decision to put them into the fourth index shows a breaking down of the scheme that Labbé had invented. When he says (_Auctuarium_, p. 398) that the seventh index will supplement the list of library catalogues, which are in the eighth index, he is confessing to uncertainty about the scheme. Wavering of this sort is evidence that he did not fully understand the scheme or did not choose to adhere to it. Although scholars no longer remember Antoine Teissier and his bibliographies, the _Catalogus_ and the _Auctuarium_ offer a uniquely useful summary of seventeenth-century scholarship. In them we find such bibliographies as a list of twenty-two medical bibliographers (_Auctuarium_, p. 288), fifteen writers (_Catalogus_, p. 349) on academies and universities (these authors are scarcely bibliographers, but contemporary practice did not separate them sharply from bibliographers), twenty compilers of catalogues of manuscripts (_Catalogus_, p. 352), twenty authors of lists of famous women (_Catalogus_, p. 352), and four bibliographers of dictionaries (_Auctuarium_, p. 298).[89] There is even a reference to a bibliographer of books of anagrams.[90]