THE GUIDE TO NATURE— ADVERTISEMENTS 
XV 
An Artists' Drawing Crayon 
The box pictured contains 
24 crayons of the very best 
quality. For artists and 
Students of Nature, to be 
used for 
sketching and 
general color 
work. 
“Crayola” is 
put up in all de- 
sirable styles 
of packing, 6 
to 24 colors in 
a box. 
Color charts and 
catalog on request. 
BINNEY & 
SMITH CO., 
81 Fulton St., 
New York. 
The Vacalionist’s Choke 
The Ai\ SCO V. 
2 ’4x3 ‘4. equipped 
P. S P E E D E X 
with the famous 
GOER2 DAGOR 
F: 6.8 or GOER/ 
CELOR F :4.8 
lens and ILEX 
ACME shutter, is 
really an outfit 
that is unsur- 
passed. The com- 
pactness, lightness, 
workmanship and 
efficiency of this 
remarkable little 
camera has met 
the most exacting 
requirements of 
t h e vacationist. 
Beautiful enlarge- 
ments may be ob- 
tained from the 
clear, sharp negatives; and pictures may be made 
under unfavorable weather conditions or later in 
the day. 
Your dealer should have this camera in stock; 
if not, write us direct for detailed information. 
The demand is taxing our best efforts. Order 
today to ensure prompt delivery. 
c P GOERZ AMERICAN OPTICAL 
COMPANY 
317 G East 34th Street,, New York City. 
IF YOU COULD BUY 
An Octavo Book on Birds 
with 
Over 800 pages of texts, 12 colored 
plates and 150 photographs of birds 
from Nature, for $2.50, you would 
think 
you had a bargain. 
BIRD-LOR 
E 
will ! 
give you more than 
this for 
$1.50. 
Send a stamp for 
sample 
copy. 
D. 
APPLETON & 
CO. 
New York City. 
1920 RUBY REFLEX 
(THORNTON-PICKARD-ENGLAND) 
COOKE F.4.5 
ANASTIGMAT 
LENS 
AUTOMATIC 
SHUTTER 
AND MIRROR 
REVOLVING 
BACK— LONG 
BELLOWS 
EXTENSION 
It's flic action that puts life and 
attractiveness into the picture. 
You can make action pictures with the 
RUBY REFLEX at the critical moment. 
The RUBY REFLEX CAMERA 
can also be used for perfect still pic- 
tures and indoor photography in 
weather where the ordinary camera 
fails 
PRICE:— 214x214, $110 3l4xlU». $130 
4x5, $160 
At Your Dealer’s 
GHAS. G. WILLOUGHBY. Inc. 
U. S. A. Sales Agents 
no WEST 32ND ST., NEW YORK 
