THE NAUTILI'S. JO.', 



credit of carrying ou for more than thirty years a publication which 

 has consistently maintained the highest standard of excellence in the ar- 

 ticles which have appeared in its pages. Not to speak of innumerable 

 minor notices and reviews of books, Crosse contributed from his own 

 pen alone, 249 articles, S-j in conjunction with P. Fischer, and 13 more 

 in conjunction with A. C. Bernard!, T. Bland, 0. Debea ux, E. Marie 

 and Dr. Souverbie, making a grand total of 348. He was singularly 

 faithful to his own journal, for the only contributions he ever appears 

 to have made to any other recognized scientific paper were six articles 

 which appeared in the years 1855-59 in the Revue ft, Jllayoxin <le. 

 Zoologie. 



Orosse's knowledge of the mollusca was not confined to any special 

 group or groups, but was tar-reaching and comprehensive. Naturally 

 his acquaintance with anatomical details was subordinate to his familiar- 

 ity with other portions of the study. The land mollusca of New Cale- 

 donia and New Mexico are, perhaps, the two fields on which he will be 

 found to have left the most permanent traces of his ability. The former 

 he dealt with in the columns of the Journal alone ; the latter, in c il- 

 laboration with Dr. P. Fischer, in the Etudes sur Its Mollusques ter- 

 restre* et ftuvialiles da Mexii/ue ef du Guatemala, which formed, 

 with an atlas of 71 plates, the two large quarto volumes making up 

 Part VII of the Recherchea Zoologique*, compiled by the Mis- 

 sion Scientifique au Me.rique et flans /' Ameri'/ttr Cent rale, and 

 published by order of the Minister of Public Instruction in France 

 (1870-1893). He also began, in conjunction with the same author, 

 the Hixtoire naturelle des Mollusques terrextres et Jtuuialiles de 

 Afadaf/axcar. 1889, but this work does not appear to have been com- 

 pleted. He was especially fond of cataloguing the molluscan fauna of 

 islands. Some of his lists thus compiled are invaluable to the student 

 of geographical distribution, remarks upon which generally accompa- 

 nied the lists. Among the islands thus treated are Rodriguez, Ker- 

 guelen, Socotra. Prince's and St. Thomas Islands (W. Africa), Nossi- 

 He and Nossi-Couiba, Trinidad, Cuba (177 pp.), San Domingo (L43 

 pp.), Porto Rico and New Caledonia (315 pp). His sympathy with 

 problems of geographical distribution is further shown by such articles 

 as the following: Jiistrilnition geogrophique et synonymic dex 

 Bulimus auricul (formes de /' Archipel Viti ; Catalogue dts ml- 

 liisqnex qui mvent dans le Detroit de ttehrinf/ ft da/tx les parties 

 coisines de I' ocean Arctiqite : l-'ti/nn- malacologique du f.ar '/\in- 

 ganyika, du Lac Baikal. 



