RECENT P UBLICA TIONS 9 5 



-Tillman, S. E. A Text-Book of Important Minerals and Rocks. With 

 tables for the determination of minerals. New York : John Wiley & 

 Sons, 1900. 



-Turner, Henry Ward. The Pleistocene Geology of the South Central 

 Sierra Nevada with Especial Reference to the Origin of Yosemite Val- 

 ley. With g plates. Proceedings of the California Academy of Sci- 

 ences, Third Series : Geology, Vol. I, No. 9. San Francisco. Published 

 by the Academy, 1900. 



-Upham, Warren. Pleistocene Ice and River Erosion in the Saint Croix 

 Valley of Minnesota and Wisconsin ; and Giants' Kettles eroded by 

 Moulin Torrents. Bulletin of the Geological Society of America, Vol. 

 XII, pp. 13-44. PL 1. Rochester, December 1900. 



-U. S. Department of Agriculture, Division of Biological Survey. North 

 American Fauna, No. 17: Revision of American Voles of the Genus 

 Microtus. By Vernon Bailey. Washington, 1900. 



North American Fauna, No. 18: Revision of the Pocket Mice of the 

 Genus Perognathus. By Wilfred H. Osgood. Washington, 1900. 



-Ward, Lester F. Elaboration of the Fossil Cycads in the Yale Museum 



(with Plates II-IV). Reprinted from the American Journal of Science, 



Vol. X, November 1900. 



Status of the Mesozoic Floras of the United States. First Paper : The 

 Older Mesozoic, by Lester F. Ward, with the collaboration of William 

 M. Fontaine, Atreus Warner, and F. H. Knowlton. Extract from the 

 Twentieth Annual Report of the U. S. Geological Survey, 1898-g, 

 Part II — General Geology and Paleontology. Washington, 1900. 

 -Washington Academy of Sciences, Proceedings of, Vol. II, 1900. Wash- 

 ington, D. C. 



Papers from the Harriman Alaska Expedition : 



IX. Diptera. By D. W. Coquillett. Vol. II, pp. 389-464. 



X. Neuropetroid Insects. By Nathan Banks. Vol. II, pp. 465-476. 

 XL Arachnida. By Nathan Banks. Vol. II, 477-486. 



XII. Lepidoptera. By Harrison G. Dyar. Vol. II, pp. 487-501. 



XIII. Heteroptera. By O. Heidemann. Vol. II, pp. 503-506. 



XIV. The Sphegoidea and Vespoidea. By Trevor Kincaid. Vol. II, 

 pp. 507-510. 



XV. Orthoptera. By A. N. Caudell. Vol. II, pp. 511, 5 12 - 



XVI. Aphididae. By Theo. Pergande. Vol. II, pp. 5 J 3~5 J 7- 



XVII. Formicidae. By Theo. Pergande. Vol. II, PP- 5 1 9— 5 2 x - 



XVIII. Coleoptera. By E. A. Schwarz. Vol. II, pp. 523-537- 



