PROCEEDINGS OF THE ACADEMY AND AFFILIATED 



SOCIETIES 



WASHINGTON ACADEMY OF SCIENCES 



The 121st meeting of the Academy was held in the Assembly Room 

 of the Cosmos Club the evening of Thursday, February 21, 1918, with 

 President Briggs presiding, the occasion being the second lecture of the 

 series on Science in Relation to the War, by Dr. George E. Hale, 

 Director of the Mi. Wilson Solar Observatory of the Carnegie Institution 

 of Washington, and Chairman of the National Research Council. 

 The subject of the address was Astronomy and war — some examples of 

 the close 'parallelism between the methods and work of the astronomer and 

 those of the military engineer. The lecture, which was abundantly 

 illustrated with lantern slides and moving pictures, was aimed to show 

 that men of science in any field, no matter how remote apparently 

 from that of military affairs, are prepared by the usual demands of their 

 scientific investigations to deal with problems pertaining to the war. 



The 122d meeting of the Academy was held in the Assembly Room 

 of the Cosmos Club the evening of Thursday, March 7, 1918, with 

 President Briggs presiding. The third lecture of the series on Science 

 in Relation to the War was delivered by Col. C. F. Lee, Commanding 

 Officer, British Aviation Mission, his subject being Aviation and the 

 war. The address, which dealt essentially with the more practical 

 phases of aviation work, has been published in this Journal (8: 

 225-232. April 19, 1918) . Colonel Lee was followed by Major Gilmore 

 of the Royal British Flying Corps, who spoke appreciatively of the 

 work of American flyers and dwelt upon the necessity of expert training 

 in gunnery, as well as in actual flying, and the personal qualifications 

 which combine to make a successful and resourceful flyer. 



The 123d meeting of the Academy was held in the Assembly Room 

 of the Cosmos Club on the evening of Wednesday, April 3, 1918, with 

 President Briggs presiding. The occasion was the fourth lecture of the 

 series on Science in Relation to the War, by Maj. Gen. John Headlam, 

 C.B., D.S.O., in charge of the British Artillery Mission, entitled The 

 development of artillery during the war. A summary of the lecture 

 will appear in a later number of the Journal. 



William R. Maxon, Recording Secretary. 



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