THE NAUTILUS. 105 
credit of carrying on 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, 83 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 548. 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 ef Magasin de 
Zoologre. 
Crosse’s knowledy» 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 must permanent traces of his ability. The former 
he dealt with in the columns of the Journal alone ; the latter, in c)l- 
laboration with Dr-P. Fischer, in the Etudes sur les Jollusques ter- 
restres et fluvialiles du Mexique et du Guatemala, which formed. 
with an atlas of 71 plates, the two large quarto volumes making up 
Part VIL of the Recherches Zoologiques, compiled by the Mis- 
ston Scientifique au Mexrique et dans’ Amerique Centrale, 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 lerrestres et fluviatiles de 
Madagascar, 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- 
Be and Nossi-Comba, Trinidad, Cuba (177 pp.), San Domingo (143 
pp-), Porto Rico and New Caledonia (315 pp). His sympathy with 
problems of geographical distribution is further shown by such articles 
as the following: Distribution geoaraphique et synonymie des 
Bulimus auricul’formes del Archipel Viti; Catalogue des mol- 
lusques qui vivent dans le Detroit de Behring et dans les parties 
voisines de Vl ocean Arctique; Faune malacologique du Lac Tan- 
ganytka, du Lac Baikal. 
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