CONTENTS 



TENTH VOLUME 



BY THOMAS BLAND AND W. G. BINNET. 



Page. 



Notes on the Genus Pineria and on the Lingual Dentition of Pineria Viequcnsis, 



Pfi 22 



On the Lingual Dentition of Helix turbiniformis, Pfr., and other species of Ter- 

 restrial Mollusca. (Plate II.) 79 



On the Sj'stematic Arrangement of North Anieriean Terrestrial Mollnsks 158 



On the Relations of Certain Genera of Terrestrial Mollusca of, or related to, the 

 Sub-family Succininre, with Notes on the Lingual Dentition of Succinea ap- 



pendiculata, Pfr. (Plate IX, in part.) 198 



Description of Heniphillia, a new Genus of Terrestrial Mollusks. (Plate IX.). . . 208 

 On the Lingual Dentition of Certain Terrestrial Pulmonata Foreign to the United 



States 219 



. On the Lingual Dentition of Gieotis. (Witli plnte XI in part.) 252 



Note on a curious form of Lingual Dentition in Physa. (With plate XI.) 255 



On Prophysaon, a new Pnlmonate Mollusk, on Ariolimax, on Helix lycliiuiihus 



and other species. (With Plates XHI and XIV.) 293 



On the Lingual Dentition and Anatomy of Achatinella and other Pulmonata. 



(With Plates XV and XVI.) 331 



BY TIIOJIAS BLAND. 



Description of a New Species of Mollusk of the Genus Helicina 186 



On the Physical Geography of, and the distribution of the Terrestrial Mollusca 



in, the Bahama Islands 311 



Description of a new species of Helix, and note on Helix Mobiliana, Lea 361 



BY n. CARRIXGTON BOLTON. 



Outlines of a Bibliography of the History of Chemistry 352 



BY LOUIS ELSBERG. 



On the Subdivisions of Science and their Classification 277 



BY p. FISCHER. 



Note sur 1' Anatomie des Cyrenes Americaines. (Plate VIII.) 191 



BY W. J. HAYES. 



Description of a Species of Cervus. (Plate X.) • 218 



BY GEORGE N. LAWRENCE. 



Descriptions of New Species of Birds from Mexico, Central America and South 



America; with a Note on iJa^MS longirostris 1 



(vii) 



