I9I2] General 499 



At the third lecture in a series on biological topics, at Trinity 

 College, Prof. Frederic S. Lee recently exhibited, for the first time 

 in this country, cinematograph films representing phases of muscu- 

 lar action, such as the reaction of the perfused heart to various 

 agents, ciliary and flagellate motions in Trypanosoma, etc. Pro- 

 fessor Lee also recently lectured before the International Y. M. C. 

 A. Training School at Springfield, Massachusetts, on " Some aspects 

 of muscular action." 



Prof. Francis E. Lloyd gave an account of his recent work on 

 the tannin content of the acorn of Quercus laiirifolia before the 

 Botanical Seminar of Johns Hopkins University, on February 16, 

 and a few days later before the Journal Club of the Department of 

 Zoology, of Columbia University. A digest appeared in the Johns 

 Hopkins University Circular for February, under the title, " The 

 association of tannin with an emulsion colloid in the acorn." 



Prof. J. J. R. Macleod will spend the rest of the year, until the 

 opening of the next Session, in Europe. During May and June he 

 will deliver a series of eight lectures on "Carbohydrate metabolism" 

 in the course of advanced lectures in physiology offered by the Uni- 

 versity of London. 



Prof. Lafayette B. Mendel gave an illustrated lecture, before the 

 Columbia chapter of Sigma Xi, January 18, on "Recent studies 

 on nutrition and growth." Professor Mendel also lectured before 

 the students of Mt. Holyoke College, on March 2, on " Changing 

 views on nutrition." 



Dr. Harvey W. Wiley delivered the annual oration on medicine 

 at the recent annual meeting, in Albany, of the Medical Society of 

 the State of New York. 



Professor C.-E. A. Winslow delivered a lecture on sanitation 

 and public health, on Mar. 5, at the University of Pittsburgh under 

 the auspices of the department of sanitary engineering. 



A series of seven lectures on "pubHc health" subjects was deliv- 

 ered at the University of Illinois, on Wednesdays and Fridays, 

 beginning March 13. The subjects and lecturers were " Sociolog- 

 ical aspects of public health," by Dr. Henry B. Favill; "Influence 

 of water supplies on public health," by Prof. Edward Bartow; 



