eo = - me = emg 
ais ‘~~ 3% * ae =. 
«Avcominuniicdtion was made between the ale 
aay a a of an aa — os 
long, and a quarter in bore. The tubulure of the receiver re- 
ceived the tapering end of an a, G, which communicated 
Vol. xx, No. 2.—Jan. -March, 1841. 
