PHILOSOPHICAL SOCIETY OF WASHINGTON. 2t 



154th Meeting. January 18, IS19. 



The President iu the Chair. 



Forty-one membei's and visitors present. 



The President referred to the recent memorial services of Prof 

 Henry at the Capitol, and stated that an invitation to attend 

 them had been extended to the Philosophical Society, and that 

 the Society was represented on the occasion. 



Mr. J. W. Osborne gave a recapitulation of his communication 

 made at a previous meeting, on 



THE APPLICATION OF METEOROLOGY TO YELLOW FEVER 

 INVESTIGATIONS. 



Remarks were made by Messrs. Antisell, Abbe, and Wood- 

 ward. 



Mr. J. W. Osborne also made a communication on 



A curious MANIFESTATION OF FORCE BY THE WIND, 



exhibiting a distorted wind vane. 



Mr. E. B. Elliott made a communication on 



THE PROGRESS OP INTERNATIONAL COINAGE IN FRANCE AND 

 AMERICA. 



ISSth Meeting. February 1, 1879. 



The President in the Chair. 



Thirty-one members and visitors present. 



Medical Director Francis M. Gunnell, U. S. Navy, and Mr. 

 George William Hill, of the Nautical Almanac OfBce, were 

 announced as having been elected members of the Society. 



Mr. F. M. Endlich made a communication 



on some interesting cases of metamorphism. 



