TRANSACTIONS OP THE SECTIONS. 



167 



Fig. I. 



The annexed illustrations exhibit views of the apparatus, and the accompanying 

 description will make llie whole understood. (See woodcut.) 



I 



The experiment commenced on the 19th of June last. 



The apparatus was then worked for an hour and a half, and the result was the 

 iising of the temperature of the water by agitation from 58° to 64° Fahrenheit. 

 The apparatus, however, got deranged, and the experiments were postponed to the 



