te of New York. 



tate Museum. Bulletin No. n. 



SECTION OF KETTLE BLOCK. 



J. Walk. 



K. Gutters. 



L. Salt bins. 



M. Engine room with Boiler, Engine and 



Blower, back of which is the salt bill. 

 N. Air space between walk and lining of salt 



bins. 

 O. Conduit for blast. 

 hi outside 



