546 



PROCEEDINGS OF THE ACADEMY OP 



genus and species of Microtine 

 rodent from Siberia, 357, 368. 

 Notes on the Arctic Red- 

 backed mice, 357, 358. 



Mills, Chas. K., M. D. Idiocy, 

 physiologically, 89. 



Mineralogical and Geological 

 Section, report of the, 517. 



Moore, Clarence B. Certain ab- 

 original mounds of the South 

 Carolina coast, 262, 263. Cer- 

 tain aborignal mounds of the 

 Savannah River, 262, 263. 

 Certain aboriginal mounds of 

 theAltamaha River, 262, 263. 

 Recent acquisitions, 262, 263. 



Moore, J. Percy. Hyalodendron 

 navalium, a new genus and 

 species of Euplectillid sponge 

 (Plate XIX, XX), 338, 430. 



Morris, Charles. On the antiquity 

 of man from the standpoint of 

 evolution, 263. 



Nolan, Edw. J., M. D. A memo- 

 rial of Dr. Joseph Leidy, 465. 

 Report of RecordingSecretary, 

 500. Report of Librarian, 505. 



Officers, Councillors and Finance 

 Committee for 1899, 520. 



Ornithological Section, report of 

 the, 518. 



Palmer, T. Chalkley. Errant 

 frustules of Eunotia major, 

 (Plates VI, VII), 89, 110. 



Perot, Charles P., announcement 

 of death of, and memorial min- 

 ute, 479. 



Pilsbry, Henry A. The function 

 of the radula, 202. Chitons 

 collected by Dr. Harold Heath 

 at Pacific Grove, near Mon- 

 terey, Cal., 262, 287. A new 

 land snail from Clarion Island, 

 351, 354. New species of Odon- 

 tostomus from Brazil and 

 Argentina, 429, 471. Margar- 

 ita Sharpii, a new Alaskan 

 gastropod, 479, 486. Report 



[1898. 



of the Conchological Section, 

 513. Report of Professor in 

 Department of Mollusca, 519. 



Pilsbry, H. A. andE. G. Vanatta. 

 Anatomical notes on certain 

 West American Helices, 

 (Plate I), 67. Revision of the 

 North American slugs : Bin- 

 neya, Hemphillia, Hespera- 

 rion, Prophysaon and Anaden- 

 ulus. (Plates IX, X, XI, 

 XII, XIII, XIV, XV, XVI), 

 156, 219. Material toward a 

 natural classification of the 

 Cylindrelloid snails (Plates 

 XVII, XVIII), 203, 264. 

 Some Cuban species of Cerion, 

 465, 475. 



Rand, Theodore D. The Birds- 

 boro trap quarries, 10. Report 

 of the Mineralogical and Geo- 

 logical Section, 517. 



Recording Secretary, report of, 

 500. 



Report of Biological and Micro- 

 scopical Section, 512. 



Report of the Botanical Section, 

 515. 



Report of the Conchological Sec- 

 tion, 513. 



Report of Corresponding Secre- 

 tary, 504. 



Report of Curators, 509. 



Report of the Entomological Sec- 

 tion, 514. 



Report of Librarian, 505. 



Report of the Mineralogical and 

 Geological Section, 517. 



Report of the Ornithological Sec- 

 tion, 518. 



Report of Recording Secretary, 

 500. 



Report on William S. Vaux 

 Collections, 512. 



Reports of the Professors, 519. 



Rhoads, Samuel N. On a small 

 collection of mammals from 

 Northeastern China, 11, 120. 



