In his title Sabin announces an intention of naming chiefly bibliographies written by British and American scholars or dealing with British and American subjects. Since he was an agent and bookdealer specializing in Americana and the author of a bibliography in that field, his account of bibliographies of Americana is naturally adequate. It begins with Bishop White Kennett's _Bibliothecae Americanae Primordia_ (1713) and extends through later standard works down to the antiquarian catalogues of such dealers as Frederik Muller, Otto Rich, and Henry Stevens in Sabin's own day. His selection of strictly British bibliographies is more cursory. Although he had Petzholdt's description before him, he reports John Bale's sixteenth century biobibliographies inaccurately. He passes over John Pits's Renaissance account of British authors without mention. Thomas Tanner's _Bibliotheca Britannico-Hibernica_, which was still a very valuable reference work when Sabin was writing, either was so rare that it escaped his notice or seemed, although wrongly, to have been replaced. Sabin is obviously not much interested in British biobibliographies. His account of bibliographies in special fields is fairly satisfactory. He gives many useful references to British and American catalogues of private libraries, and his comments on them are often helpful. His arrangement of these titles is extremely clumsy. I cite the catchwords under which Sabin lists a few of these catalogues: Askew, Bibliotheca Heberiana (he neglects to mention the thirteenth part), Bibliotheca Smithiana, Catalogue of Books ... in the Collection of Colonel Joseph Aspinwall, and Crevenna. These are references now to the collector's name and now to the first word in the title. _The Catalogue of the Valuable Library of Stanesby Alchorne, Esq._ is under the compiler's name, T. F. Dibdin. There are no cross-references and the arrangement is confusing. Sabin's interest in T. F. Dibdin led him to cite an autobiography, a book that cannot be called a bibliography.