Walker Prizes in Natural His 
The oigal Lenard of dpcinads History offers a first prize of fae 
$100, and a second prize of a not om $50, for the best memaim 
English, on one of the fllowtie ¢ subjec 
1. The coronas of inflorescence to aera illustrated by the plants of 
BEN 
What aepthe of formerly overlying —— aoe oo _* denudation, 
ferred —_ the structure of various rocks in 
3. iments affording evidence for = ate t the theo eory of ~of evolution 
Ea a3 sealed 
and superscribed by a motto corr ar o one ie y the man 
han . to the Secretary on or betes tee I, 1894. 
zes will not be awarded unles the memoirs are of adequate merit. 
Sioe July 3, 1893. SAMUEL HENSHAW, 
aes 
R. FRIEDLANDER & SOHN, Natural History I 
Berlin (Germany) N. W. Carlstr. 11, 
have published every fortnight, since 1879: 
Naturae Novitates: Natural History News: 
Biblingraahir List of He ae aise of all Nations oa Natal 
“ E ces. 
Price $1 per year ( 52] ) ae Speci gener tS gratis on app 
fourt Gaith yor a of publicatior ive 
Back eae each ons coset with index, stil to ragte 
cessories, etc.), is now - ready. 
t noteworthy and — 
to have i it 
78th, is the mos 
we have issued for many 
in the hands of all who desire 
“This edition has been entirely "©" 
many parts, with a number of new 
some startling reductions im pees 
QUEEN 
MICROSCOPE MAKER> 
_ PHILADELP 
N. B.—The new edition of the Reichert catalogue 8 noo lox ‘i 
scopes and objectives are of the finest quality 
ceptable reductions in price here also. 
ence. 
