302 



not proceed upwards, while the coke with which it is filled 

 constantly drops down to supply the place of that consumed, 

 on the principle of the ancient furnaces, called " athanors" 

 by the earlier chemists. 



The only difficulty to be apprehended in the use of coke, 

 is the collection of slag, from the fusion of its earthy and 

 ferruginous constituents ; however the author does not con- 

 sider that this accumulation during the period from sunset to 

 sunrise, in mid-winter, would materially interfere with its 

 action. 



The Treasurer presented the account for the year ending 

 March 31, 1839. 



Ordered to be entered on the minutes, and published in 

 the Proceedings . 



Ordered, — That the Seal of the Academy be affixed to 

 the Treasurer's Accounts. 



