A CENTURY OF ZOOLOGY IN AMERICA 413 



Zoology in the American Journal of Science, 

 1870-2918. 



The third series of the Journal (1870-1895), likewise 

 including fifty volumes, embraces this period of zoologi- 

 cal activity in morphological and embryological studies, 

 culminating with the inception of the modern experimen- 

 tal methods. 



In this period also occurred the greatest progress in 

 marine systematic zoology, due to the explorations of the 

 United States Fish Commission off the Atlantic Coast. 

 The Journal had an important share in the zoological 

 development of this period also, for A. E. Yerrill, who 

 was now an associate editor, was in charge of the collec- 

 tions of marine invertebrates. Consequently most of the 

 discoveries in this field were published in the Journal in 

 numerous original contributions by Verrill and his asso- 

 ciates. The explorations of the U. S. Fish Commission 

 Steamer "Albatross" are described from year to year by 

 Verrill, with descriptions of the new species of inverte- 

 brates discovered. 



The numerous original contributions by Verrill on 

 subjects of general zoological interest as well as on those 

 of a systematic nature give this third series of the Jour- 

 nal much zoological importance. Verrill 's papers cover 

 almost the whole field of descriptive zoology, but are 

 mainly devoted to marine invertebrates. Those which 

 were originally contributed to the Journal or summarized 

 by him in his literature reviews include the following 

 topics : 



Sponges, 16, 406, 1878. 



Coelenterates, 37, 450, 1864; 44, 125, 1867; 45, 411, 186, 46, 

 143, 1868; 47, 282, 1869; 48, 116, 419, 1869; 49, 370, 1870; 3, 

 187, 432, 1872; 6, 68, 1873; 21, 508, 1881; 6, 493, 1898; 7, 41, 

 143, 205, 375, 1899 ; 13, 75, 1902. 



Echinoderms, 44, 125, 1867; 45, 417, 1868; 49, 93, 101, 1870; 

 2, 430, 1871; 11, 416, 1876: 49, 127, 199, 1895; 28, 59, 1909; 

 35, 477, 1913; 37, 483, 1914; 38, 107, 1914; S9, 684, 1915. 



Worms, 50, 223, 1870; 3, 126, 1872. 



Mollusks, 49, 217, 1870; 50, 405, 1870; 3, 209, 281, 1872; 5, 

 465, 1873; 7, 136, 158, 1874; 9, 123, 177, 1875; 10, 213, 1875; 



26 



