JULT 16, 1920] 



SCIENCE 



59 



Cold Spring Harbor, on June 25, was as 

 follows: President Stewart Paten's address: 

 "Democracy's opportunity." R. H. Johnson: 

 " Some eugenical aspects of the distribution 

 of wealth." Madison Grant : " The present 

 racial outlook in the world at large." A. H. 

 Estabrook: "The eugenical bearing of psy- 

 chological work of the army." A. J. Eosan- 

 off: "Preliminary report of a study of the 

 prevalence of chronic psychoses in the popu- 

 lation of the State of New York." Anna M. 

 Peterson : " The eugenical aspect of custodial 

 institutions for women." F. Stuart Chapin: 

 " The scientific aspects of field work in the 

 social sciences." C. B. Davenport : " Heredity 

 of twins." H. H. Laughlin : " The eugenical 

 provision of the constitution of the German 

 republic." 



Free public lectures are being delivered in 

 the lecture hall of the Museum Building of 

 the New York Botanical Garden, Bronx Park, 

 on Saturday afternoons, at four o'clock, as 

 follows : 



July 17. "'Spoilage of fruits and vegetables 

 during transportation and storage," F. 0. Meier. 



July 24. ' ' The state park at Devil 's Lake, Wis- 

 consin, " Dr. A. B. Stout. 



July 31. "Flowers for the summer garden," 

 G. V. Nash. 



August 7. "Diatoms — ^plants of beauty seen 

 through a microscope, ' ' Dr. M. A. Howe. 



Aug^t 14. "Through the Philippines with a 

 kodak," Dr. H. A. Gleason. 



August 21. "How to know, gather and cook 

 the pufFbaUs, ' ' Dr. W. A. Murrill. 



August 28. "A trip to Colorado," Dr. F. J. 

 Seaver. 



In order to provide a method for viewing the 

 collections of the garden under guidance, a 

 docent leaves the front door of the museum 

 building every week-day afternoon at 3 o'clock, 

 to escort all who may wish to accompany him. 

 The routes are as follows: Monday: Hemlock 

 Forest, Mansion and Herbaceous Garden. 

 Tuesday: Pinetum. Wednesday: Fruticetum 

 and North Meadows. Thursday: Deciduous 

 Arboretimi, Public Conservatory Range 2, 

 Nurseries, and Propagating Houses. Friday: 

 Public Conservatory Range 1. Saturday : 

 Museums. 



UNIVERSITY AND EDUCATIONAL 

 NEWS 



Dr. Rodney Howaed True, of the TJ. S. De- 

 partment of Agriculture, has been appointed 

 professor of botany in the University of Penn- 

 sylvania, to succeed Dr. John M. Maofarlane, 

 who recently resigned. 



Dr. Walter Taggaet has been appointed 

 Blanehard professor of chemistry and director 

 of the chemical laboratory of the University 

 of Pennsylvania, to succeed Dr. Edgar F. 

 Smith. 



Dr. H. R. Kraybill, of the Bureau of 

 Plant Industry, has been appointed professor 

 of agricultural chemistry and head of the de- 

 partment of chemistry of New Hampshire 

 State College. 



Additional appointments in Colorado Col- 

 lege for 1920-21 include, as assistant professor 

 of geology, Mr. I. A. Keyte, B.S. (Missouri), 

 recently head of science work in the Colorado 

 Springs High School, and, as instructor in 

 physics, Mr. Elmer Fumquist, A.M., (Illi- 

 nois), recently an instructor in that insti- 

 tution. 



Eeinhold F. a. Hoernle, assistant professor 

 of philosophy at Harvard University, has re- 

 signed in order to accept a professorship at 

 Durham University. 



Dr. W. J. Dakin, professor of biology in the 

 the University of Western Australia, has been 

 appointed to the Derby chair of zoology. Uni- 

 versity of Liverpool, in succession to the late 

 Professor Leonard Doneaster. Dr. I. M. Heil- 

 bron, professor or organic chemistry at the 

 Royal Technical College, has been appointed 

 to the chair of organic chemistry. 



Dr. Benjamin Moore, of the research staff 

 at Oxford, has been appointed to the new chair 

 of biochemistry. 



DISCUSSION AND CORRESPONDENCE 



INTERSEXES IN DROSOPHILA AND DIFFERENT 

 TYPES OF INTERSEXUALITY 



To THE Editor of Science : In your issue of 

 March 26, 1920, there appeared an important 

 article by Dr. Sturtevant, in which he proved 

 that intersexuality may be produced in 



