l6o BIOLOGICAL LECTURES. 



Protozoa, first edition, by Bronn, completed 1859. 

 Protozoa, second edition, by Biitschli, completed 1889. 

 Sponges, by Vosmaer, completed 1887. 



Actinozoa (coelenterates and echinoderms), by Bronn, completed 

 1860. 



Ccelenterates, second edition, by Chun (pts. i-io). 

 Echinoderms, second edition, by Ludwig (pts. 1-19). 

 Malacozoa, by Bronn and Keferstein, completed 1866. 

 Mollusca, second edition, by Simroth (pts. 1-20). 

 Tunicates, second edition, by Seeliger (pts. 1-3). 

 Worms, by Pagenstecher and Braun (pts. 1-37). 

 Crustacea, by Gerstaecker, first half, completed 1879. 

 Crustacea, by Gerstaecker, second half (pts. 1-46). 

 Fishes, by Hubrecht (pts. 1-4). 

 Amphibia, by Hoffmann, completed 1878. 

 Reptiles, by Hoffmann, completed 1890. 

 Birds, by Gadow (pts. 1-49). 

 Mammals, by Giebel and Leche (pts. 1-41). 



In all these volumes the literature is abundantly cited, and 

 they usually include exceedingly valuable bibliographies, in 

 most cases classified by subjects. When we consider the value 

 of these lists of authorities, and in our minds add the value of 

 Bronn' s Thierreich as the fullest existing repository of zoologi- 

 cal facts, we necessarily rank this invaluable compendium among 

 the few books indispensable to every zoological laboratory. 



III. Current Bibliographies, or periodicals devoted wholly or 

 in great part to recording the current literature in a given 

 field. We may consider such bibliographies conveniently 

 under two heads : first, annual publications ; second, periodical, 

 that is, issued at shorter intervals. 



A. Annual Publications. The succession of these may 

 be said to have been fathered by M tiller's Archiv fur Anatomic, 

 Physiologic und wissemchaftliche Mcdizin. Miiller's Journal 

 was the continuation of Reil's, Reil and Autenrieth's, and 

 J. F. Meckel's Archiv. It was begun in 1834, and is continued 

 to-day, but in 1877 was divided into two Abthcilungcn (Anato- 

 mischc and Physiologischc], each making an annual volume. 

 The whole series constitutes the most important morphological 

 and physiological single publication in the world. Johannes 



