lv THE NAUTILUS. 
‘“ COLLECTORS.’’ 
SHEHELLS—-10,000 SPECIES 
Land, Marine and Fresh-Water Shetls 
FOR SALE. 
Among all the prominent European Dvalers we possess the RICHEST stock in 
Conchology. 
Our sj-ecimens are in good condition, the classification of the material is correct 
and our prices lower than elsewhere. 
Orders can be delivered free of freight charges 
from here tothe United States within four weeks, 
Also large stock in FOS§1L§, Vertebrates and Invertebrates from all formations. 
Catalogues will besent gratis on demand—Address : 
“LINNAEA” Institution for Natural History, - BERLIN, N. W. 
Germany. Louisenplatz, 6 
WW BS COAST Sra 
By Prof. Josiah Keep, Mills Co.lege, California 
A familiar description of the Marine, Fresh-Water and 
Iand Mollusks, found in the United States, West of the 
Rocky Mountains. 182 Illustrations, 230 pages. The 
frontispiece is a hand-painted engraving of the very rare 
and beautiful Swrcula Carpenteriana, Gabb. 
To aid in the study of Shells, the pronunciation of the 
Latin names is indicated, and a Glossary, Key, Biograph- 
ical Index of Naturalists, and a Check List are added. 
Beautifully printed and bound, Price, postpaid, $1.75, 
Flelix (Aglaia) fidelis Gray, Oregon. Samuel Carson & Co,, Publishers, 208 Post St., San 
Francisco, Cal. Please mention this paper. 
Do you appreciate an absolutely Pure, Uncolored, and Fragrant Tea? Drop us a 
postal card, mentioning this paper, and we will mail you a free sample of 
AGI Er’ S Ce LON aaa. 
After trying it, we believe you will use it regularly. Address, 
FINLEY ACKER & CO.,, 123 North Eighth St., Philadelphia, Pa. 
LD BUOKS.—Catalogues of Old, Rare ue Setonduieeu Standard Books) sent free, 
0 JORDAN BROS., No. 211 N. Ninth St., Philadelphia, Pa, 
THE NABEILUS 
ADVERTISING RATES. 
CASH WITH ORDER. 
Space. zmo. | 3mo. | 6mo. |1zyear.| Space. Imo. | 3mo. | 6mo. | 1 year. 
: i 
1 inch. 50 | 1.10; 2.00; 3.80|3 page.) 2.75 | 7.00] 12.00| 20.00 
2 eehee 90 | 2.15 | 3.90, 7.50% page. 4.00 | 10.00) 18.00) 30.00 
3 inches.) 1.30 | 3.20 | 6.00) 11.50/1 page.) 5.00 | 12.00| 22.00; 40.00 
In writing to Advertisers please mention ‘‘ THE NAUTILUS.” 
Address, Wm. D. Averell, Manager, Mt. Airy, Phila., Pa. 
2 inch. | 25 | .60| 1.00 1.90% page. 50 | 4.00) 7.00 12.50 
