No. 149.] 181 



hose into the tank, and filled it to 37| inches, an increase of 2| 



inches on the day previous. 



FRANKLIN TOWNSEND, 

 PETER ROWE, 

 A. VAN TUYL, 

 G. M. SELDEN, 

 JOHN FITCH, 



Committee, 



REPORT OF THE COMMITTEE OF ARTS AND SCIENCES OF 

 THE AMERICAN INSTITUTE, 



On the pamphlet entitled " Description of the causes of the explosion 

 of steam hollers^ and of some newly discovered properties of heat ^ 

 ^c," hy James Frosty and on the experiments and theories therein 

 described and set forth. 



After perusing the said pamphlet, several members of the 

 committee proceeded to the residence of Mr. Frost at Brooklyn, 

 where they carefully examined all the apparatus devised by Mr. 

 Frost, for the illustration of his theory, witnessed a number of 

 his experiments which he performs by means of them, and assist- 

 ed at the trial of an engine propelled alternately by steam gener- 

 ated in the usual manner, and steam heated after being generated, 

 out of contact with water. 



In respect to the apparatus, they report that it is planned with 

 much ingenuity, and upon principles which admit of no doubt 

 as to the accuracy of the results exhibited by experiments per- 

 formed with it. These results will be hereinafter spoken of in 

 detail. In respect to the engine they found a very marked and deci- 

 ded superiority in the measure of the work performed by it, 

 when the steam was heated after being generated. In the ab- 

 scence of those members of the committee practically skilled in 

 the action of steam engines, however, they do not venture to 

 assert that the principles upon which the engine acts when pro- 



