November 30, 1917] 



SCIENCE 



537 



istry department, Stanford University, "Liquid 

 air." (With demonstrations.) 



December 2. Dr. A. A. D'Ancona, member of 

 San Francisco Board of Education, "Circulation 

 of the blood." (Illustrated by motion pictures.) 



December 9. Miss Alice Eastwood, curator, de- 

 partment of botany, California Academy of Sci- 

 ences, "Weeds." (Illustrated.) 



The series of lectures on heredity pre- 

 sented before the "Washington Academy of 

 Sciences and later published in the Journal 

 of the academy has now been reprinted in col- 

 lected form. The volume contains the fol- 

 lowing addresses: 



Dr. H. S. Jennings. "Observed changes in he- 

 reditary characters in relation to evolution. ' ' 



Dr. Oscar Riddle. "The control of the sex 

 ratio." 



Dr. W. E. Castle. "The role of selection in he- 

 redity. ' ' 



The collected papers bound in buckram in 

 uniformity with the preceding series of lec- 

 tures on "Nutrition" may be obtained from 

 the treasurer of the academy, Mr. William 

 Bowie, TJ. S. Coast Survey, Washington, 

 D. 0. 



Mr. C.utLETON R. Ball, agronomist in 

 charge of Western Wheat Investigations, U. 

 S. Department of Agriculture, delivered a 

 lecture on " The Scope and Problems of 

 Agronomy " before the students in agronomy 

 at the Maryland Agricultural College, on 

 November 8. 



The American Phytopathological Society 

 will meet at Pittsburgh, December 28, 1917, 

 to January 3, 1918, in affiliation with 

 the American Association for the Advance- 

 ment of Science. There will be joint meet- 

 ings of the society with Section G of the 

 association and also with the Botanical So- 

 ciety of America. 



Section E — Geology and Geography — of 

 the American Association for the Advance- 

 ment of Science, will hold meetings at Pitts- 

 burgh, Pa., on Friday and Saturday, Decem- 

 ber 28 and 29, with a session on Monday, 

 December 31, provided enough papers are 

 offered by geologists returning from the meet- 

 ings of the Geological Society of America in 



St. Louis to make a Monday session desirable. 

 A symposium upon the topic " Mineral Re- 

 sources and Chemical Industry," to be held 

 jointly with Section C, is planned for Friday, 

 December 28. The address of the retiring 

 vice-president of Section E, Professor Rollin 

 D. Salisbury, of the University of Chicago, 

 upon " The Educational Value of Geology," 

 will be given on Saturday morning, December 

 29, at 10 o'clock. The meetings of Section E 

 will be presided over by Professor George H. 

 Perkins, of the University of Vermont. Titles 

 of papers to be read before the Section should 

 be in the hands of the secretary. Dr. Rollin 

 T. Chamberlin, University of Chicago, before 

 December 15. Members who can only attend 

 a session on Monday, December 31, and who 

 wish to present papers at that time are re- 

 quested to notify the secretary as soon as pos- 

 The Journal of the American Medical As- 

 sociation states that the second American 

 orthopedic contingent, composed of forty-two 

 medical officers under the direction of Major 

 Goldthwaite, has arrived in England. All 

 the officers as well as three of engineering ex- 

 perience commissioned in the sanitary corps 

 are to take charge of the development of 

 curative workshops in the American ortho- 

 pedic hospitals in France. There are also 

 twelve orthopedic nurses as a nucleus around 

 which a nursing staff is to be developed. All 

 the medical staff except the director are to be 

 distributed temporarily through the British 

 orthopedic centers. Arrangements have been 

 made by which these centers can be used for 

 training Americans in orthopedic work with 

 the idea of providing relief for the large 

 niunber of medical officers that will be re- 

 quired for this special work. When these 

 men are needed for service in the American 

 hospitals in France, another group will be 

 sent from home to take their place in the 

 British hospitals. The rotation will be con- 

 tinued until the American hospitals are fully 

 staffed. Major Goldthwaite is going on to 

 American headquarters in France to organ- 

 ize the orthopedic hospital with the Ameri- 

 can Army. 



