iv THE NAUTILUS. 
NWN OPEC: LO CGR re OLOGrS a=. 
The undersigned has recently returned from the coast of Lower California with a good serie s- 
of shells, and will spend the summer and fall on the northern Coast of the Pacific States, and in 
the mountains of Idaho and the interior in the interest of Conchology. On his return he will: 
publish a new Catalogue and Price List of his North American Shells. It will contain the names 
of nearly two thousand species and varieties, all collected by himself personally. Conchologists 
who contemplate adding American shells to their collections will find it to their advantage to de 
= purchasing until the Catalogue is ready for distribution; notice of which will be given in this- 
ournal, 
It will contain the names of many rare species and varieties; the material will be good, and the- 
prices low. HENRY HEMPHILL, P. O. Box, 1023, San Diego, Calif. 
: ‘“ COLLECTORS.’ 
SH HMMS —10:82607SP2 BE CiresS 
Land, Marine and Fresh-Water Shells 
FOR SALE. 
Among all the prominent European Dealers we possess the RICHEST stock im 
Conchology. 
Our specimens 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 to the United States within four weeks. 
Also large stock in FOS§1LS, Vertebrates and Invertebrates from all formations. 
Catalogues will besent gratis on demand—Address: 
“ LINNAEA” Institution for Natural History, - BERLIN, N. W. 
Germany. Louisenplatz, 6 
VA Jar Sn! Qi@ysgS 20 Sr Slia eae SS) 
By Prof. Josiah Keep, Mills Coilege, California 
A familiar description of the Marine, Fresh-Water and Land Mollusks, found inthe United 
States, West of the Rocky Mountains. 182 Illustrations, 230 pages. The frontispiece is a 
hand-painted engraving of the very rare and beautiful Suxcula Carpenteriana, Gabb. 
To aid in the study of Shells, the pronunciation of the Latin names is indicated, and a Glossary,. 
Key, Biographical Index of Naturalists, and a Check List are added Beautifully printed and 
bound, Price, postpaid, $1.75, 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 
ACH ER’S Geyser TA 
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, Rae and Second-hand Bedard Booka sent free. 
JORDAN BROS., No. 211 N. Ninth St., Philadelphia, Pa. 
THE NAUTILUS 
ADVERTISING RATES. 
CASH WITH ORDER. 
1 year. | Space. | rmo. | 3mo. | 6mo.. | rz year. 
Space. Imo. | 3mo. | 6mo. 
} inch. 29 | .60 | 1.00) 1.90.4 page.| 1.50 | 4.00) 7.00) 12.50 
1 inch. 0 | 1.10 | 2.00) 3.80/4 page.| 2.75 | 7.00/ 12.00 20.00 
2 inches. .90 yezealle) 3.90 7.504 page.| 4.00 | 10.00) 18.00) 30.00 
3 inches.) 1.80 | 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. 
