RECENT P UBLICA TIONS 555 



By W. E. Ritter, University of California. Vol. Ill, pp. 225-266. 



Pis. XXVII-XXX, July 13, 1901. 

 A New Species of Olenellus from the Lower Cambrian of York County, 



Pennsylvania. By Atreus Wanner. Vol. Ill, pp. 267-272. Pis. 



XXXI-XXXII, July 13, 1901. 

 Synopsis of the Rice Rats (Genus Oryzomys) of the United States and 



Mexico. By G. Hart Merriam, Vol. Ill, pp. 273-295, July 26, 1901. 

 Papers from the Harriman Alaska Expedition, XXIV, The Willows of 



Alaska. By Frederick V. Coville. Vol. Ill, pp. 297-362. Pis. 



XXXIII-XLII, August 23, 1901. 

 Papers from the Hopkins-Stanford Galapagos Expedition, 1898-9 : I, 



Entomological Results (i): Hemiptera. By Otto Heidemann, U. S. 



Department of Agriculture. Vol. Ill, pp. 363-370, August 23, 1901. 

 -Whitfield, R. P. Note on a Very Fine Example of Helicoceras Steven- 

 soni Preserving the Outer Chamber. [Author's Edition, extracted from 

 Bulletin of the American Museum of Natural History, Vol. XIV, Article 

 XVI, p. 219. New York, July 29, 1901.] 

 Notice of a Remarkable Case of Combination between Two Different 



Genera of Living Corals. [Author's Edition, extracted from Bulletin 



of the American Museum of Natural History, Vol. XIV, Article XVII, 



pp. 221, 222. New York, July 29, 1901.] 

 Some Observations on Corals from the Bahamas, with Description of a 



New Species. [Author's Edition, extracted from Bulletin of the 



American Museum of Natural History, Vol. XIV, Article XVIII, pp. 



223, 224. New York, July 29, 1901.] 

 -WiNCHELL, N. H. Editorial Comment: The Archean of the Alps. [From 

 the American Geologist, September, 1901.] 



