2CXD ROCHESTER ACADEMY OF SCIENCE. [Feb. 25, 



THE ELECTRICAL EQUIPMENT OF A MODERN COM- 

 MERCIAL BUILDING. 



By Joseph E. Putnam. 



The paper was illustrated by the electrical appliances used in 

 lighting, heating, Yentilating and supplying power to the Chamber of 

 Commerce building. 



Following the reading of the paper the members were conducted 

 through the building to inspect the various electrical apparatus. 



February 25, 1896. 



The President in the chair. The usual audience present. 



In the absence of the Secretary, Mr. H. L. Preston was 

 appointed Secretary />;(; /^w. 



Mr. J. M. Davison exhibited an unusual form of quartz from 

 (ireenfield, Saratoga county. New York. This was a nodular and 

 radiated mass, the size of a chestnut, derived from a Laurentian 

 gneissoid rock which had been altered by contact with a dyke. Its 

 hardness 6 to 7, infusible, opaque before blowpipe, partly decomposed 

 in HCl. without gelatinizing. The analysis yields quartz 93.75, 

 ahmiina 6., with a trace of iron and water. 



Mr. Preston thought the mineral was probably a pseudomorph 

 of quartz, perhaps one of the zeolites, which frequently occur in 

 radiated forms. 



The President exhibited a picture of a fossil neuropterous insect 

 of gigantic size. 



The following paper was presented : 



ANALYSIS OF THE KESEN METEORITE. 

 Hv J. M. Davison. 



This meteorite, w hich fell in the village of Kesen, Japan, on the 

 13th of June, 1850, is described by Prof. Henry A. Ward in the 

 Proceedings of this Academy for 1892, Vol. 2, Brochure 2, p. 171. 



The analysis here given was comi)lcted after the publication of 



