COOC D000 D000 C000 CS000 T5000: 
SEA HORSES and 
SEA ANEMONES 
: and other assorted specimens for 8 
(| MARINE AQUARIUMS. Persistant } 
8 change of water not necessary. Full 8 
: : 
instructions given for care. 
R. DONKER 
227 West 83rd Street g 
NEW YORK CITY, N. Y. 
[a CA OO ea RIaT HS EO) 
(RR a cere een | 
EVERYTHING IS FISH THAT COMES i 
TO THE NET OF A NATURALIST 
Don’t paddle in the water with one hand and be blind with both 
eyes. In other words “‘keep your eyes open’’ for all nature. 
Our Magazine 
Che Guide to ature 
Will Help You 
It is edited by EDWARD F. BIGELOW, who fishes in the 
heavens and earth, as well as the waters under the earth. 
Four months’ trial, 25c. One year, $1.00 
THE AGASSIZ ASSOCIATION 
8 ArcAdiA 
Sound Beach 
JODO DDO O0O 000 M000 000000000 
Connecticut 
BLUE, BLACK and VARI-HUED CALICO 
JAPS and TELESCOPES 
Large assortment as to size and quality with 
a wide range of prices. Young from $3, $4, 
$5 per dozen. Breeders from $5 per pair. 
GEORGE A. SCHENK 
29 Claremont Place Mt. Vernon, N. Y. 
HUGO C. NELLES 
Dealer and Breeder of Tropical Fishes 
30 Different Kinds on Hand at Present 
Prices Reasonable 
Call After 3.00 P.M. Out of Town Orders Given Prompt Attention 
1305 3rd Avenue New York, N. Y. 
Finest Blue and Calico Broad- 
tail Telescopes in Philadelphia 
Correspondence Answered 
C. J. HANNIG, 1225 N. Randolph Street 
PHILADELPHIA 
Charles E. Visel 
Broad-tail Telescopes and Japs 
Blacks, Blues and Parti-colors 
215 PuTNAM AVENUE, BROOKLYN, N. Y. 
THINK IT OVER 
The critical buyer of fish food as a rule is 
the breeder. He must look for results. That 
Yogi gives results is proven by the fact that 
the majority of the largest and most successful 
breeders are using Yogi Fish Food. Give it 
a trial. 
10c a Box, by Mail 12c 
60c a Pound, by Mail Add 
Postage for 2 Pounds 
A NATURAL 
FOOD CONTAINING THE 
NECESSARY INGREDIENTS TO 
KEEP YOUR FISH IN GOOD HEALTH. 
y FEED TWICE DAILY. 
YOGI 
———————————— 
FISH FOOD 
Manufactured only by 
ROBT. J. SCHAEFFER 
PRICE, 10. 
Robert J. Schaeffer 
1818 Frankford Ave. 
Philadelphia 
FOR SALE—Hundreds of breeding Guppies 
(Lebistes reticulatus). The most beautiful 
ones you ever saw. You choice, 25c. each. 
Large breeding Helleri, 75c. each. All kinds 
Snails and Tropical Fishes. Add 25c. for 
can. 
Y. VARJE, 1361 N. Clark St., Chicago, Ill. 
Telephone, Superior 4415. 
DRIED SHRIMP 
The General Utility Food for Fishes. 
Per pound, coarse, 75c.; fine ground, $1. 
St. George’s Natural Fish Food, $1.50 lb. 
Sample can, 15c. Add postage to your zone. 
CANADIAN BIRD STORE 
2139 West Van Buren Street. Chicago, Ill. 
Che Mature Studp Review 
OFFICIAL JOURNAL 
AMERICAN NATURE-STUDY 
SOCIETY 
The numbers for the coming school year will 
be filled with special articles from practical 
teachers dealing with actual works, methods and 
suggestions for school gardening, elementary 
agriculture and nature-study. 
$1.00 per year. 15c, per copy. 
Add for Canadian Postage 10 cents. 
Foreign Postage, 20 cents. 
With Aquatic Life, one year, $1.50. 
ITHACA, N. Y. 
Aquattc Lrfe 
VOL, II. 1916 - 1917 
A limited number of copies are availab‘e in 
substantial cloth binding, with title page and 
comprehensive index. 166 pages and about 
the same number of illustrations, some in color 
Price, $2.25, postpaid. 
Aquatic Life 
542 EAST GIRARD AVENUE. 
PHILADELPHIA. 
