18 



The slaty cannel gives — 



Fixed carbon ...... 32 



Gas 24 



Earthy matter ...... 44 



100 



The limestone yielded — 



Carbonate of lime 95.75 



Insoluble silica ...... 3.00 



Peroxide of iron ...... 1.25 



100.00 

 Analysis of the balls of carbonate of iron : 100 grains of this 

 ore yielded — 



Peroxide of iron .... G1.50 = iron 43. 



Carbonic acid .... 31.50 

 Silex 7.00 



100.00 

 In smelting iron ores with these coals, it will be necessary to 

 convert the coal into coke, and the small coals may thus be dis- 

 posed of on the spot. 



No better gas-making coals are found in the United States, 

 and but one better variety in the British Pi'ovince of New 

 Brunswick — namely, that of Albert County. 



Dr. Jackson spoke in high terms of admiration of a series of 

 fossil fishes now at the Smithsonian Institution undergoing de- 

 scription by Dr. Newberry. He stated that these fossils appear 

 like fishes cast in brass, the scales of the ganoids being covered 

 with a film of iron pyrites ; and expressed the hope that Dr. 

 Newberry might soon exhibit some of them to the Society. 

 They were found in the Diamond County coal mine in Ohio. 



Dr. A. A. Gould exhibited a specimen of the common Lumhricus 

 ascaris, an intestinal worm, which was vomited alive by a person, 

 by whom, and by whose friends, the worm was called a snahe. 

 Dr. Gould referred to two or three other and similar cases, and 

 observed that science could do much to disabuse the public of 

 the incorrect idea that animals could live for any considerable 



