THE NAUTILUS. ili 
1p; GOS b/NAN (Epis Se 
Wanted.—Conchological works and showy Marine Shells.— Offered L. & F. W. Shells of this 
locality ; also Fossils for Shells. Send lists and get mine. W. L. McDANIEL, Box 371, 
Mineola, Wood Co., Texas. 
bers 1 (postal card), 3, 4, and 5 of Vol. 1, and No. 3 of Vol. 2, Conchologists’ Exchange, 
or for rare shells. Address, W. D. AVERELL, Mt. Airy, Phila. 
~ West Coast Shell offered in exchange for others. IDA M. SHEPARD, Long Beach, Cala. 
~ Shells offered for Minerals or Sea Shells. W. F. LERC H, Davenport, Iowa. hs z 
Minerals, Fossils and Reptiles offered for named shells. Prof. J. E. TALMAGE, Salt Lake 
Sig Cees | > | a 
~ Offered.—African Coleoptera in return for good shells. C. F. ANCEY, Boghari, Algeria. 
POssii’ PERN S 
From Mazon Creek, Grundy Co., Ills., for sale or exchange for Marine Shells or Corals. 
Only good shells offered or wanted. 
J. C. CARR, Cashier Gruncy Co. Nat. Bank, 
MORRIS, ILLS. 
Cones’ New Key to North American Birds, 
Revised Edition containing a faullaccountyotevery kuown species, 
8)) piges, 56lillustrations. Boundin eloth or flexible leather. $7.00 
CUlustrated prospectus for 4c. postage. I.C Greene, Fitchburg, Mass. 
WEST COAST SHELLS. 
By Progr. Jostau Keep, Mills Co lege, California. 
A familiar description of the Marine, Fresh-Water and 
Land 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 
SQ and beautiful Swrcula Carpenteriana, Gabb. 
\ TYoaid in the study of Shells, the pronunciation of the 
Latin names is indicated, anda Glossary, Key, Biographi- 
cal Index of Naturalists, and a Check List are added. 
Beautifully printed and bound, Price, postpaid, $1.75. 
Helix (Aglaia) fidelis, Gray, Oregon. C, 1. DILLINGHAN, 718 Broadway, New York City. 
Please mention this paper, 
THE WEHST AMPRICAN SCIENTIST 
Will hereafter be published by the undersigned. Mr. CHARLES R. ORCUTT of San Diego 
will continue as its editor. 
First issued as a four-page monthly in 1884, this magazine has steadily grown in merit and 
popular favor until it is now in the forefront of the scientific magazines of the country. 
SAMUEL CARSON & CO. 
Publishers, Booksellers and Stationers, Wholesale and Retail, 
208 Post St., San Francisco. 
i ae CS Some oy ee 
A monthly journal especially for 
ey P| 
SLUDENTS AND: LOVERS OF MATURE 
With miscellaneous reading of value and interest to all. Has departments of Botany, Zoology, 
Astronomy, Geology, Ornithology, Entomology, Microscopy, etc., each department being in 
charge of a specialist. 
#iay- Do you love the great out-door world, do you enjoy roaming over fields and through the 
woods, are you interested in the birds, flowers, insects, rocks, etc., do you wish to know more 
of the wonders and beauties of nature? Have you a microscope or wish to get one, or are you 
interested in chemical or physical experiments? Do you enjoy good, interesting miscellaneous 
reading? Ifso, then subscribe for 7ze Observer. ; 
It is an unique, original paper. ‘‘ Keep Your Eyes Open,” is its motto. 
There is no other paper of the same character published. ‘‘ It supplies a need’’ is the 
unanimous verdict. Subscription only 50 cents a year. Send for sample copy. 
Address: EDWARD F. BIGELOW, Portland, Conn. 
SiS ICAL NA INO Vwrag@asy_ 
In order to increase the growing circulation of THe Naurivus in Foreign Countries, a limited 
number of copies will be sent to resident students in Exchange for desirable named shells. 
Address, THE NAUTILUS, Mt. Airy, Philadelphia, Pa. 
