i [ 
Bot j 
a — 
pe eae ces bt 
} 
ot Ay 
ma 
i T Seu aT 
A] 
f | 
FIC.IV. 
For L. Hargraves Paper on 
the Trochoided Plane. 
FIG. 
PHOTO-LITHOGRAPHED AT THE GOVT. PRINTING OFFICE, 
SYONEY, NEW SOUTH WALES. 
