Vallée is guilty of many more faults. He includes titles that do not belong in a bibliography of bibliographies.[168] As I have already said, their number does not seem to me to be very large and many of them lie on the fringes of bibliography. His descriptions and entries are incomplete and inaccurate.[169] He cites bibliographies that can be easily found and scarcely need mention.[170] He fails to analyze the long subject entries in his index.[171] He makes serious errors in names, dates, titles, and places of publications and is careless about editions and the continuations of works that spread over several years. In his supplement of 1887, he fails to repair the faults that reviewers had pointed out. More serious than anything in this long list of faults is, in my opinion, his rash attempt to survey all bibliographies anew with little or no regard for his predecessors. Two things must be said in reduction of this severe judgment on Vallée. He is the first compiler of a bibliography of bibliographies to base his work on the books in a particular library and to indicate, although incompletely and inaccurately, what he has seen there. He has included many references to bibliographical sections in non-bibliographical books. Although these and other references of slight value are numerous, he has accumulated a very large number of bibliographies. Almost everyone will find something useful in Vallée's book. The first volume contains 6894 titles, and the supplement raises the total to 10,246. In a savage criticism[172] Henri Stein declared that perhaps 2500 titles should have been omitted and 3000 should be added. This amounts to saying that Vallée collected about three-quarters of the bibliographies he should have found. I cannot vouch for the correctness of these estimates but they may suggest what the book is worth. It is regrettable that Henri Stein, to whom we now turn, did not give the additional titles as a supplement instead of writing a new bibliography of bibliographies. In the _Manuel de bibliographie générale_ (1897) Henri Stein (b. 1862), a member of the staff of the Bibliothèque Nationale, offered the world a new bibliography of bibliographies. He calls it nothing less than a summary of all bibliographies published before 1897,[173] but seems at times to be content to supplement Petzholdt's _Bibliotheca bibliographica_. He falls far short of completeness and does not make his intention entirely clear. Although the task that he undertook is beyond any man's strength, his treatment of his colleague Vallée does not awaken sympathy for him.