January 12, 1906.] 



SCIENCE. 



49 



promoting local interest in pure and applied 

 science. 



Finally, and in the most comprehensive sense, 

 to the local committee and especially to its presi- 

 dents, Drs. Craighead and Beyer, its secretary, 

 Mr. Mayo, and the chairman of its finance 

 committee, Mr. Godehaux — in addition to the 

 courtesies already mentioned — for providing ideal 

 lunch arrangements, so convenient to the meeting 

 places as to avoid a wasteful break in the day's 

 work; for tendering a delightful reception — the 

 peculiar charm of which was due in large part to 

 the tactful management of Miss Minor and her 

 associates in the ladies' reception committee; for 

 a final ride, enabling us to carry away a coherent 

 impression of New Orleans and its many points 

 of historic interest ; and for many acts of thought- 

 fulness — individual as well as collective — that will 

 cause the past week to remain among the most 

 pleasant memories that cluster about the many 

 pleasant meetings of the association. 



(Signed) William Tbelease, Chairman, 



For the Committee, 

 Messrs. Trelease, Magie and Newcomb. 



Response to these resolutions and fare- 

 well were given for the local committee by 

 Professor Geo. E. Beyer, who extended a 

 cordial invitation to the association to meet 

 soon again in New Orleans. Response by 

 President Woodward, who was also for- 

 mally thanked by the association for his 

 efficient and acceptable work as presiding 

 officer. Adjourned. 



GENERAL COMMITTEE. 



At the meeting of the general committee 

 on Monday evening, January 1, 1906, it 

 was decided to hold a special summer meet- 

 ing at Ithaca, New York, to close on or 

 before July 3, 1906, and a regular winter 

 meeting in New York City to begin on 

 Thursday, December 27, 1906. The presi- 

 dential and vice-presidential addresses will 

 be omitted at the summer meeting and 

 given at the winter meeting. 



The officers elected at the New Orleans 

 meeting will, therefore, hold over to the 

 close of the New York meeting. Chicago 

 was recommended as the place of the winter 

 meeting of 1907. 



The following officers were elected for 

 the Ithaca and New York meetings : 

 President: Dr. W. H. Welch, Baltimore, Md. 

 Vice-Presidents : 



Section A — Dr. Edward Kasner, New York 



City. 

 Section B — Professor W. C. Sabine, Cam- 

 bridge, Mass. 

 Section C — Mr. Clifford Richardson, New 



York City. 

 Section D — ^Mr. W. R. Warner, Cleveland, 0. 

 Section E — Professor A. C. Lane, Lansing, 



Mich. 

 Section F.— Professor E. G. Conklin, Phila- 

 delphia, Pa. 

 Section G — Dr. D. T. MacDougall, Washing- 

 ton, D. C. 

 Section H — Professor Hugo Miinsterberg, 



Cambridge, Mass. 

 Section I — Mr. Chas. A. Conant, New York 



City. 

 Section K — Dr. Simon Flexner, New York 

 City. 

 General Secretary: Mr. John F. Hayford, Wash- 

 ington, D. C. 



Secretary of Council: President F. W. McNair, 

 Houghton, Mich. 



Clarence A. Waldo, 

 General Secretary. 



THE RELATION OF MECHANICS TO 

 PHYSICS."^ 



In the historical development of me- 

 chanics the names of Galileo, Newton and 

 Lagrange mark the principal epochs, each 

 of the three periods, from Galileo to New- 

 ton, from Newton to Lagrange and from 

 Lagrange to our time, covering roughly a 

 century. 



When Galileo in 1633, at the age of 

 sixty-nine years, was forced by the pre- 

 lates of Rome to abjure solemnly the truth 

 of the Copernican system of the universe 

 to the proof of which he had devoted the 

 main efforts of a long and active life, he 

 had still to write his most remarkable 

 work, the 'Discorsi e dimostrazioni mate- 



' Address of the vice-president and chairman of 

 Section A, Mathematics and Astronomy, of 

 American Association for the Advancement of 

 Science, New Orleans, December 29, 1905. 



