Apbil 2, 1915] 



SCIENCE 



501 



ogy and mining, Stanford University has just 

 added to its collections the working library and 

 material of the late Professor Henry Hemphill, 

 of Los Angeles. The collection contains be- 

 tween 8,000 and 9,000 specimens of shells and 

 150 volumes. The material is of very great 

 importance in the study of the Tertiary geol- 

 ogy of the Pacific coast, and especially of the 

 geology of the petroleum deposits of California. 

 The trustees of the Presbyterian Hospital, 

 New York City, have taken an option to pur- 

 chase the former American LeagTie baseball 

 grounds, bounded by Broadway, Fort Wash- 

 ington avenue, 165th and 168th Streets. This 

 site is owned by the New York Institute for 

 the Education of the Blind, which has been 

 holding it in the market at $2,000,000. Pur- 

 chase of the site is made possible by the be- 

 quests of the late John S. Kennedy, by whose 

 will the hospital receives about $2,500,000. It 

 is understood that the College of Physicians 

 and Surgeons, the medical school of Columbia 

 University would be removed to the new site. 

 Mr. Edward S. Harkness gave, in 1910, $1,- 

 500,000 toward an alliance between the hospital 

 and the university. 



UNIVERSITY AND EDUCATIONAL NEWS 



By the will of General Brayton Ives, of ISTew 

 York , City, the largest part of his estate is be- 

 queathed to Yale University for its general 

 purposes. The daily papers estimate the 

 value of the bequest at from $750,000 to 

 $1,500,000. 



Mr. W. E. Allen, of Shefiield, has be- 

 queathed about $750,000 to public purposes, 

 including $25,000 and part of the residuary 

 estate to the University of Shefiield for work 

 in applied science. 



According to private information received 

 from Mexico, the Carranza government has 

 closed all educational and scientific institu- 

 tions in Mexico, including not only the Uni- 

 versity, the Geological Institute, the Medical 

 Institute and the National Museum, but also 

 all normal schools, high schools and elemen- 

 tary schools under its control. 



The department of chemistry at Iowa State 

 College, Ames, Iowa, is now installed in the 



new chemistry building which replaces the one 

 destroyed by fire in March, 1913, The build- 

 ing is constructed entirely of brick, stone and 

 concrete and is as near fireproof as possible. 

 The initial cost was $200,000, and the build- 

 ing is 244 feet by 162 feet; three stories high, 

 with a usable basement. 



Three Whiting fellowships in physics, each 

 with an income of $600, for the college year 

 1915-16, have been fiUed at the University of 

 California. Eellowships on this endowment 

 fund are conferred for the purpose of further- 

 ing advanced study, either abroad or at an 

 American university. 



Students in the newly established forestry 

 school at the University of California are to 

 receive instruction in game conservation. 

 They will be taught to recognize at sight the 

 different species of game fish and animals and 

 will be informed as to the economic value of 

 each and the means by which they can be con- 

 served. Dr. H. C. Bryant, in charge of the 

 bureau of education, publicity and research 

 recently established by the California Fish and 

 Game Commission, will give the introductory 

 lectures. He will be followed by N. B. Sco- 

 field, in charge of the department of commer- 

 cial fisheries, and Dr. W. P. Taylor, curator of 

 mammals in the University of California Mu- 

 seum of Vertebrate Zoology. 



Dr. Andrew Hunter, of the Cornell Med- 

 ical School, has been appointed professor of 

 pathological chemistry in the University of 

 Toronto. 



Dr. E. Travers Smith has been appointed 

 to the chair of materia medica, therapeutics 

 and pharmacology in the school of surgery of 

 the Eoyal College of Surgeons in Ireland. 



DISCUSSION AND COBRESPONDENCE 



EVIDENCE BEARING ON THE ORIGIN OF HUMAN 

 TWINS FROM A SINGLE OVUM 



On the supposition that twins originate 

 always from two ova, and that the chances 

 are even as to whether an individual of a pair 

 of twins is to be male or female, the ratio of 

 like pairs to those whose members are of dif- 

 ferent sex may be worked out according to 

 the laws of chance. The Mendelian ratio 



