608 



SCIENCE 



[N. S. Vol. LII. No. 1356 



An anonymous donor has given Yale Uni- 

 versity bonds valued at over $100,000 for the 

 department of university health. 



Stanford University will have on its cam- 

 pus for the 1923 intercollegiate contests a 

 stadium seating at least 60,000 spectators and 

 costing approximately $750,000. The engi- 

 neering commission, composed of Professors 

 W. F. Durand, C. D. Marx, and C. B. Wing 

 of the engineering departments of the univer- 

 sity, has been requested to proceed at once with 

 the preparation of the final plans of con- 

 struction. 



Samuel W. Dudley, at present chief engi- 

 neer of the Westinghouse Airbrake Company, 

 has been apjwinted professor of mechanical 

 engineering on the Strathcona Foundation at 

 Yale University. 



Dr. Edwards A. Park, associate professor 

 of pediatrics at the Johns Hopkins Univer- 

 sity, has been elected professor of i>ediatrics 

 in the Yale Medical School. Dr. Park gradu- 

 ated from Yale with the degree of Bachelor of 

 Arts in 1900. 



Francis Marsh Baldwin, (Ph. D. (Illi- 

 nois), associate professor of physiology in the 

 department of zoology at Towa State College, 

 has been raised to the rank of professor. F. A. 

 Fenton, Ph.D. (Ohio State), has been advanced 

 to the rank of associate professor of ento- 

 mology, and is acting chief of the Entomo- 

 logical Section of the Experiment Station, 

 during the absence of Professor E. D. Ball, 

 now assistant secretary of agriculture. 



DISCUSSION AND CORRESPONDENCE 



WRATTEN FILTERS 



To THE Editor of Science: My attention 

 has been called to the fact that some biological 

 workers have been using Wratten filters for 

 measurements of the response of living ani- 

 mals to light, and that there is a possibility 

 that results obtained in this way may be viti- 

 ated by the infra-red transmission of such 

 filters. Measurements show that practically 

 all these fiLlters transmit the infra-red; the 

 monochromatic series, for instance, transmit 



over 50 per cent, of the radiation of longer 

 wave-length than 750 W which is transmitted 

 by glass and gelatine. The filters were made 

 for photographic work and are suitable for 

 visual research, but no attempt has been made 

 to eliminate the infra red, and they are quite 

 unsuitable for work where infra red radiation 

 may introduce errors unless that radiation is 

 absorbed by some suitable filter such as the 

 solution of copper chloride recommended by 

 W. W. Coblentz, Bulletin of the Bureau of 

 Standards, Volume VII., 1911, p. 655. 



C. E. K. Mees 

 Research Laboratory, 

 Kodak Park, 

 eochester, n. y. 



the cost of german publications 



To THE Editor of Science: Mr. Howe's 

 communication seems to deserve some further 

 remarks. A recent letter from a prominent 

 dealer in Leipzig tells me that prices for Ger- 

 many are doubled for foreign customers and 

 that he has no reason to believe that Ameri- 

 can dealers will be able to furnish at a lower 

 rate. Postage is ten times higher and there 

 is a government expert tax of 8 per cent, of 

 the invoice. The course I took was to write 

 the dealer not to send me anything; that in 

 future I would not buy anything as an indi- 

 vidual in Germany and would try to do the 

 necessary reading through libraries, thereby 

 dividing the cost among a number. I added 

 that I objected particularly to the export tax. 



George Dock 

 School of Medicine, 



Washington llNrvERSiTT 



A QUESTION OF BIBLIOGRAPHY 



To THE Editor of Science: In his weU- 

 known volume on " Fur-bearing Animals,"^ 

 the author, Elliott Coues, described on the 

 authority of " Mr. Lockhart," an extraordi- 

 nary act of the wolverene in the presence of 

 man. The wolverene will squat on his 

 haunches and shade his eyes with one of his 



iTJ. S. Geol. Surv. Misc. Publ. VIII., WasHng- 

 tou, 1877. 



