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SCIENCE 



[N. S. Vol. XXXVni. No. 985 



istry and sanitary engineering, has been 

 elected president of the Drexel Institute of 

 Art, Science and Industry. 



John Ellsworth Hartzler, the newly 

 elected president of Goshen College, was in- 

 augurated on November 7. President Win- 

 throp E. Stone, of Purdue University, and 

 President Robert L. Kelly, of Earlham Col- 

 lege, represented the universities and colleges 

 on the program on this occasion. 



The following appointments have been made 

 in the school of civil engineering, Purdue Uni- 

 versity: H. B. Smith, instructor in railway 

 engineering; A. L. Dierstein, instructor in 

 structural engineering; W. E. Stanley, assist- 

 ant in surveying. 



Recent appointments in science in West 

 Virginia University are as follows : Wm. 

 Henry Schultz, Ph.D., professor of pharma- 

 cology and materia medica; Aaron Arkin, 

 M.D., Ph.D., professor of bacteriology and pa- 

 thology ; A. H. Foreman, E.E., M.E., Ph.D., as- 

 sistant professor of electrical and experimental 

 engineering; L. I. Knight, Ph.D., plant physi- 

 ologist in the experiment station, in coopera- 

 tion with the University of Chicago; E. L. 

 Andrews, assistant professor of poultry hus- 

 bandry; Isaac B. Johnson, B.S.Agr., instruc- 

 tor in animal husbandry; Oliver Smith, B.S.- 

 Agr., instructor in agronomy; W. B. Kemp, 

 B.S.Agr., instructor in agronomy; O. M. Kile, 

 B.S.Agr., agricultural editor; John Heron II- 

 lick, M.S., instructor in zoology; Joseph W. 

 Hake, M.S., instructor in physics; Hubert 

 Hill, B.S., instructor in chemistry; W. A. 

 Price, Ph.D., instructor in geology; Edward 

 F. Woodcock, M.A., instructor in botany. 



Recent appointments at the University of 

 Florida include: L. W. Buchholz, A.M., and 

 W. S. Cawthon, A.M., as professors of educa- 

 tion in the newly organized teacher's college; 

 R. R. Sellars, B.S. (Bucknell), instructor in 

 civil engineering; A. J. Strong, B.S. (Mich. 

 Agr.), instructor in mechanic arts, both in 

 college of engineering; Ira D. Odle, B.S. (Pur- 

 due), instructor in botany and bacteriology; 

 J. F. Duggar, Jr., M.S. (Ala. Poly.), instruc- 

 tor in agronomy, in the College of Agriculture. 



In the Agricultural Experiment Station, lab- 

 oratory assistants have been appointed as fol- 

 lows: A. C. Mason, B.S. (Mich. Agr.), in ento- 

 mology, J. Matz, B.S. (Amherst), in plant 

 pathology. O. F. Burger, assistant plant 

 pathologist, has been granted leave of absence 

 for study at Harvard University. 



The extension division of the University of 

 Florida was made a separate and independent 

 portion of the university organization, with 

 P. H. Rolfs, as director, and A. P. Spencer, as 

 vice-director. All extension service will be 

 concentrated in this division, including farm- 

 ers' institutes; farmers' demonstration and 

 boys' and girls' club work, in cooperation with 

 the Bureau of Plant Industry of the United 

 States Department of Agriculture; literary 

 and scientific lecture bureau; instruction for 

 teachers and county institutes; correspond- 

 ence courses, etc. 



Mr. a. G. Steele has been appointed head 

 of the department of psychology in Temple 

 University, Philadelphia, Pa. 



Professor Franz Cosmat, of Gratz, has been 

 called to the chair of geology at Leipzig. 



Dr. Adolf Windaus, of Freibourg, has ac- 

 cepted the chair of chemistry at Innsbruck. 



DISCUSSION AND COBBESPONDENCE 



ABSORPTION OF THE SUN's ENERGY BY LAKES 



To THE Editor of Science: The Wisconsin 

 Geological and Natural History Survey has 

 been making a study of the rate at which the 

 energy of the sun's rays is absorbed as they 

 penetrate the water of lakes. Two instruments 

 have been used for this purpose. The first is a 

 black-bulb thermometer in vacuo; a so-called 

 solar thermometer. The instrument is exposed 

 to the action of the sun at different depths, 

 say 1 m. and 2 m. from the surface. The rate 

 of rise of the mercury is noted and from the 

 relation of the rates at the two depths can be 

 computed the amount of absorption of heat in 

 the stratum between them. The second in- 

 strument is a thermopile and galvanometer, 

 designed for the purpose by Professor C. E. 

 Mendenhall, of the department of physics. 

 University of Wisconsin, and constructed in 



