COOKE : m MEMORIAM : M. H. CROSSE. 5 



Born in 1827, it was in 1851 that Crosse contributed his first 

 paper (Notice sur rhabitat du Panopaea Aldrovafidi, de Sidle) to the 

 Jour?ial de Conchylio/ogie, which was then in the second year of its 

 existence, edited by M. Petit de la Saussaye. It gives us some idea 

 of the strides which the science has made since those days to learn 

 that then malacology was still governed by the systems of Lamarck 

 and of Cuvier. Reeve, Sowerby, and Kiister had but recently com- 

 menced their iconographies, Kiener had suspended his, the Adams' 

 Genera^ Philippi's Hafidbiich, Gray's Giiide, Woodward's and Chenu's 

 Manuals were yet to appear. Geographical distribution, as a serious 

 study, was absolutely unknown. 



It is with the Journal de Conchyliologie that Crosse's memory will 

 be for ever associated. His name first appears on the titlepage of 

 that periodical in 1861, and it is not too much to say that to him and 

 his distinguished colleague, Dr. P. Fischer, who, considerably the 

 younger man, predeceased him by nearly half a decade, is due the 

 entire credit of carrying on for more than thirty years a publication 

 which has consistently maintained the highest standard of excellence 

 in the articles 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, 86 in conjunction with P. 

 Fischer, and 13 more in conjunction with A. C. Bernardi, T. Bland, 

 O. Debeaux, 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 recognised 

 scientific paper were six articles which appeared in the years t 855-59 

 in the Revue et Magasin de Zoologie. 



Crosse's knowledge of the Mollusca was not confined to any 

 special group or groups, but was far-reaching and comprehensive. 

 Naturally, his acquaintance with anatomical details was subordinate 

 to his familiarity with other portions of the study. The Land 

 Mollusca of New Caledonia and of 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 i\\Q./our?ial 

 alone, the latter, in collaboration with Dr. P. Fischer, in the Etudes 

 sur les Mollusques terrestres et fluviatiles du Afexique et du Guatemala, 

 which formed, with an Atlas of 71 Plates, the two large quarto 

 volumes making up Part VII of the Recherches Zoologiques, compiled 

 by the Missio?i Scientifique au Mexique et dans P Amerique Ce?itrale, 

 and published by order of the Minister .of Public Instruction in 

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

 author, the Histoire Naturelle des Mollusques terrestres et fluviatiles de 



