Royston o Picfott . 
PW Tram. MDCCC LXX. Ham i , 
2500 diameters. 
Xepvsma, 
Ii&ffi/SrrMi 
l Trnei 
*750 
X 2.500 
•'< 1.660 
X 800 
X 900. 
x t s oo. 
Ptrucl/urei of the' PocLura, Scaly,. 
lensAldous del et litluad JN\t with Camera Lucid a, 
