SCIENCE 



Editoeial Committee : S. Newcomb, Mathematics ; E. S. "Woodwaed, Mechanics ; E. C. Pickeeing. 



Astronomy; T. C. Mendenhall, Physics; E. H. Thueston, Engineering; Ira Eemsen, Chemistry; 



J. Le Conte, Geology; W*. M. Davis, Physiography; O. C. Maesh, Paleontology; W. K. Beooks, 



C. Haet Meeeiam, Zoology; S. H. Scuddee, Entomology; C. E. Bessey, N. L. Beitton, 



Botany; Heney F. Osboen, General Biology; C. S. Minot, Embryology, Histology; 



H. P. BowDiTCH, Physiology; J. S. Billings, Hygiene ; J. McKeen Cattell, 



Psychology; DANIEL G. Beinton, J. W. Powell, Anthropology. 



Fbiday, December 2, 1898. 



CONTENTS: 

 The Assodatinn of American Agricultural Colleges 



and Experiment Stations: A. C. True 761 



Thermal Efficiency of Steam Engines : Professor 



E. H. Thueston 764 



Tlie Kinetic Theory of Gases and Some of its Conse- 



giiences: Peofessoe WILLIAM EAMSAY 768 



On Some Analogies between the Physiological Effects 

 of Lack of Oxygen, High Temperature and Certain 

 ■ Poisons: Dr. WiLLTAM ZoETHOUT 776 



Leidy's Genus Ouramceba : PROFESSOR WILLIAM 

 L. POTEAT 778 



New Names for Sperm.ophihis brevicaudus, Canis pal- 

 lidus and Sorex caudatus Merriam : De. C. Haet 

 Meeeiam ; for Microtus insularis Bailey : Ver- 

 non Bailey ,■ /or Sciurus albipes quercinus Nel- 

 son : E. W. Nelson 782 



Professor James Ingraham Peck : Professor H. C. 

 BUMPUS 783 



Notes on Inorganic Chemistry : J. L. H 783 



Current Notes on Meteorology : — 

 August Hot Wave in California ; Monthly Weather 

 Review; Notes: E. DeC. Ward 785 



Botanical Notes : — 



Some More Atrocious Botany; Western Weeds; 

 The Economic Grasses of the United States 785 



Qwrrent Notes on Anthropology : — ■ 



Influence of Sex on Crime ; The Progress of An- 

 thropology ; A Neolithic Lady : Peofessoe D. 

 G. Brinton 787 



Scientific Notes and News 788 



University and Educational News 791 



Discussion and Correspondence : — 



Shall the International Eguivalent of 'Anlage' be 

 Primordium or Proton : PEOFESSOE BURT G. 

 Wilder. Post-glacial Connecticut : Mark S. 

 W. Jefferson 793 



Scientific Literature: — 



Helmholtz's Handhuch der physiologischen Optik : 

 Peof. J. McKeen Cattell. Atkinson's Elemen- 

 tary Botany : Peof. Conway MacMillan 794 



Scientific Journals 798 



Societies and Academies : — 



Boston Society of Natural History : Samuel 

 HenshAW. Biological Society of . Washington : 



F. A. Lucas. Geological Club and Conference of 

 Harvard University : J. M. BOUTWELL 799 



New Books .' 800 



THE ASSOCIATION OF AMERICAN AGRICUL- 

 TURAL COLLEGES AND EXPERI- 

 3IENT STATIONS. 



The Association of American Agricul- 

 tural Colleges and Experiment Stations, 

 which held its twelfth annual convention 

 at Washington, D. C, ISTovember 15th-17tb, 

 includes in its membership many of the 

 State universities and scientific institutions 

 in which instruction in many technical 

 lines besides agriculture is carried on. It 

 is a delegate body, each college being 

 represented by its president or other officer, 

 and each agricultural experiment station by 

 its director or some other member of its ex- 

 pert staff. The institutions represented in 

 this Association employ over 1,500 persons 

 in their faculties, who are giving instruction 

 to about 30,000 students. These institu- 

 tions have over $50, 000, 000 in permanent 

 endowments, buildings and equipment, and 

 an annual revenue of nearly $6,000,000, of 

 which more than $2,000,000 is derived from 

 funds granted by the United States. Be- 

 sides the work of instruction, ihey are 

 carrying on original research in differ- 

 ent directions. This is especially true in 

 many scientific lines relating to agriculture, 

 over a million dollars being spent for this 

 purpose annually. There are now pending 

 in Congress propositions to establish, in con- 

 nection with these institutions, experiment 

 stations for investigations in mechanic arts 

 and naval engineering, for which some of 



