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PROCEEDINGS OF THE AMERICAN ACADEMY 



given in the accompanying table. The whole expansion of the steam, 

 when heated from 212° to 228°, was a little more than one thirtieth of 

 its volume at 212°. According to Mr. Frost, it should have been more 

 than ninety times as great as the committee found it to be. 



" The experiments of the committee were made with steam under a 

 pressure ranging from 24 to 24^ inches of mercury, that is, under less 

 than atmospheric pressure. This condition could not influence the 

 result unfavorably to the view of Mr. Frost, since the less the pres- 

 sure, the greater is the expansion with a given elevation of tempera- 

 ture. 



" The committee deem it unnecessary to consider farther the claims 

 of the alleged newly discovered properties of heat, as set forth in the 

 pamphlet of Mr. Frost. 



E. N. HORSFORD, 

 JOSEPH LOVERING, 

 DANIEL TREADWELL, 

 BENJAMIN PEIRCE." 



Mr. Foster, of the United States Survey of the Mineral 

 Lands of Lake Superior, being present by invitation, read the 

 subjoined paper. 



