Mat 18, 1917] 



SCIENCE 



479 



tension before very long, to enable it to be 

 opened witli the rest of tbe building after tbe 

 war. This will complete the laboratories as at 

 present proposed, although the foundations 

 have been designed to allow a fourth story to 

 be added at a later date, a wide view having 

 been taken of the future possibiUties of the in- 

 stitution. 



UNIVERSITY AND EDUCATIONAL 



NEWS 



Stanley Coulter Hall, the new biology 

 building at Purdue University, erected at a 

 cost of over $100,000, will be dedicated on May 

 17. This building has been named in honor of 

 Dean Coulter in recognition of his thirty 

 years of seientiiic work in the university. The 

 dedication will be held in connection with the 

 spring meeting of the Indiana Academy of 

 Science at Lafayette. Professor Wm. T. 

 Sedgwick, the Massachusetts Institute of 

 Technology; Dr. H. C. Cowles, the University 

 of Chicago; Dr. Carl Eigenmann, Indiana 

 University; President W. J. Moenkhaus, of 

 the Academy; and J. S. Wright, Esq., of the 

 alumni, will be the chief speakers. 



Western University receives $20,000 by the 

 will of the late William H. Burrows, a trustee 

 of the institution. 



The late William H. Burrows, president of 

 the Middletown National Bank, has be- 

 queathed $20,000 to Wesleyan University, of 

 which he was a trustee. 



By recent action of the board of trustees of 

 the University of Chicago, the president of the 

 university, on recommendation of the head of 

 a department, will welcome doctors of philos- 

 ophy of the University of Chicago and other 

 universities as guests of the university, with 

 the privilege of attending seminars and of 

 carrying on research in the laboratories and li- 

 braries. There will be no charge except for 

 laboratory supplies and a nominal laboratory 

 fee where laboratory work is done. 



Leland Stanford Junior University School 

 OF Medicine has adopted the quarter system, to 

 begin on October 1, 1917. By the adoption of 

 this system the school has a continuous session, 

 any three quarters constituting a college year. 



The quarter system has been in. effect at the 

 Eush Medical College, Chicago, since 1899. 



Morris M. Leighton, Ph.D. (Chicago, '16), 

 has been elected to the Washington Geological 

 Survey for next year and to an assistant pro- 

 fessorship in geology at the University of 

 Washington, Seattle, to take effect on Septem- 

 ber 1, 1918. Dr. Leighton substituted at the 

 University of Washington during the year 

 1915-16. 



Professor Frederick B. Loomis, of Amherst 

 College, has been appointed professor of geol- 

 ogy to succeed Professor B. K. Emerson, who 

 is retiring from active work. 



Dr. WiLLLiM G. MacCallum, professor of 

 pathology at Columbia University, has resigned 

 to accept the chair of pathology and bacteriol- 

 ogy at the Johns Hopkins University and Dr. 

 Adrian V. S. Lambert, associate professor of 

 surgery, has been designated to serve as acting 

 head of the department, vacant by the resigna- 

 tion of Dr. George E. Brewer. 



DISCUSSION AND CORRESPONDENCE 



WHERE DO PITCHER-LEAFED ASH TREES 

 GROW? 



At the New Orleans meeting of the scien- 

 tific societies, in 1905, I reported the discovery 

 of a group of pitcher-leafed ash trees (Fraxi- 

 nus americana) near the Station for Experi- 

 mental Evolution, Cold Spring Harbor, Long 

 Island.^ These trees had one or more leaflets 

 of nearly every leaf — especially the terminal 

 leaflets — formed into ascidia or so-called 

 " pitchers." 



This group of pitcher-leafed trees occupies 

 a definitely circumscribed area, surrounded 

 on all sides by trees with only normal flat leaf- 

 lets, and I supposed, until a few months ago, 

 that the pitcher-bearing trees were limited to 

 this single small area, and the inference 

 seemed justified that they had originated on 

 this area by a comparatively recent mutation. 



Two new localities for this peculiar form 

 were discovered last fall in western Pennsyl- 

 vania by Professor Charles W. Palmer, of the 

 Westtown School, Westtown, Pennsylvania, 

 and by a friend of his to whom he explained 



1 See Science, N. S., 23: 201, February, 1906. 



