Bull. U. S. F. C. 1896. (To face page 342.) 
Plate XXV. 
Nonu'nclaturp. 
a. Cylinder. 
h. Shafts. 
p. Spanner holes. 
b. Frame. 
i. Sleeves. 
q. Set screvs. 
c. CIam]>s to seciu-e apparatus to 
j. Lu^s. 
r. Stay rods. 
temperature rope. 
k. Slots. 
s. Inner arms (»f pi opcdh-r frames. 
d. Expansion chamber. 
f. Valves. 
t. Outer arms of ]H'opeller frames. 
e. Cock. 
m. Valve seats. 
u. Cylimler rlamp. 
/. Guard.s. 
n. End ])ieces. 
V. pin for cylinder cdanip. 
g. Propellers. 
0. Spanner lioles. 
