D LdCOYls. 
Phil. Trans. 1884. Plate I'l 
A. FuAiorneter. 
J3. 13 aerometer 
C. Laboroutory Tube 
D. Steel block with 3 way tap. 
E. Annular pipe for heating liguid. in 
jacket. 
F. Jacket with 2 plate, glass windows. 
G. Winch to rouse. Mercury Reservoir H. 
I. Flexible tube connecting Reservoir. 
■with' iron pipe K. 
JL. Water Pump. 
M. Moveable, shelf to support TroughN. 
N. Mercury Trough with side shelf for 
holding gas - cylinders . 
O. Iron pipe for emptying _Ei cdicmeter. 
F. S crew s ttrrer turned, by a. cord, round, the. 
wheel. Q . 
-A_ 
THE GAS ANALYSER_Balliol College, Oxford. 
Westewmaii & C? sc. 
W.H.Bffi del. 
