419 



stitution, London, Dec. 2, 1874, (92); the Chemical Society, 

 London, (92) ; the Society of Antiquaries, London, Dec. 8, 

 1874, (92 ; wanting 88) ; Mr. J. D. Cox, Toledo, Ohio, Dec. 

 24, 1874, (92); tlie Anthropological Institute of Great 

 Britain and Ireland, London, 4 St. Martin's Place, W. C, 

 Dec. 1, 1874, (92). 



Letters requesting (62 and 88) missing numbers of the 

 Proceedings were received from the Royal Geographical 

 Society, London, 1 Saville Row, Burlington Gardens, W., 

 Dec. 3, 1874. 



A letter respecting publications for 1875 was received 

 from Putnam & Sons, Fourth Avenue and Twenty-third 

 street, New York, Dec. 17, 1874, for Amherst College. 



A letter from A. H. Barclay, President, Rantoul Literary 

 Society, Rantoul, Champaign County, 111., Dec. 26, 1874, 

 acknowledging receipt of (92) Proceedings and giving an 

 account of the progress of that Society was read. 



Donations for the Library were received from the l^atural 

 History Society at Emclen, Royal Academy at Brussels, 

 Geographical Society at Paris, Revue Politique, editors of 

 London Nature, Boston Natural History Society, Worcester 

 County Medical Association, Franklin Institute, editors of 

 Penn Monthly, and the U. S. Department of the In- 

 terior. 



- Prof. Frazer exhibited a new and convenient retort for 

 the manufacture of oxygen ; a hollow cone of copper plate, 

 fitting tightly down upon a short conical ring of copper 

 plate, mounted upon a disc or base of the same, and forming 

 a box to receive the residuum. Plaster of Paris is run into 

 an outside groove to lute the joint. The instrument is 

 c^.eaned with speed and ease ; the resistance is so slight as to 

 render an explosion little dangerous. Prof. Frazer claimed 

 for it the merit only of being a convenient modification of 

 Prof. Morton's apparatus. 



Mr. Briggs described an explosion at Kirkbride's Hospital, 

 by which the engineer of that institution was killed, 

 although connection was made through a pipe 80 feet long. 



