THE NAUTILUS. lil 
HXCHANG ES. 
As a Premium, each subscriber is allowed an exchange of 25 words, including address. 
Exchanges printed in this column for 25 cents per 25 words, including address. Notices over 
25 words printed at the rate of one-half cent per word. No exchange inserted for less than 25 
cents. Notices which are merely indirect methods of soliciting cash purchasers will not be 
admitted in this department under any pretence ‘Terms, cash with order. 
_ Offered :—Dana's Man. of Mineralogy, Darwin’s ‘‘ Earthworms,” and Insectivorous Plants. 
ented :—Cypreas and European Helices. G. D. Lind, 3626 Cote Brilliante Ave., St. Louis, 
oO. 
Wanted :—Microscopical Journals and Books, volumes or odd numbers. Offered :—Micro- 
scopical and Natural History Journals, also N. E. Shells and Minerals. L.A. Lee, Brunswick, 
Maine. 
rr00 species of exotic shells, including many Indian land rarities, offered for others from 
Mayotte, W. Indies and S. America. MISS LINTER, Arragon Close, Twickenham, Eng. 
Offered :—Helix nemoralis and Helicina occulta from Rockbridge Co., Va., for shells from 
other localities. JAS. H. MORRISON, Box 34, Lexington, Va. 
ALFRED CARUANA GATTO, B.A,M.C.S. 59Str. Levante, Valletto, Malta. 
JUST OUT.—CwTRIB0soNs 10 THE MILLOSCA OF FLORIDA 
Nomenclature and Check-List of American Land Shells. 
By H.A. Pilsbry. Price, 1oc., postpaid. soc. per dozen copies, postpaid. 
Address W. D. AVERELL, - - - - . - - Mt. Airy, Phila 
COUES’ NEW KEY 'TO NORTH AMERICAN BIRDS.— Revised edition con- 
taining a full account of every known species, 890 pages, 561 illustrations. Bound in cloth or 
flexible leather,$7.50. Illustrated prospectus for 4c. postage. I C. GREENE, Fitchburg, Mass. 
CALIFORNIA SEA SHELLS 
FOR SALE CHEAP. 
SEND For Prick-List AND SAMPLE COPY OF 
“THE OLD CURIOSITY SHOP,” 
A Monthly Journal devoted to Science in all its Branches. 
E. M. HAIGHT, 2 = J 
Box 24, Riverside, Gaile 
A Perfect Fountain Pen 
for 75 cents. 
The only Fountain Holder practical with Steel Pens. We guarantee these pens to give 
erfect satisfaction. Sent postpaid on receipt of price. Address, 
“ W.B. BENSINGER’S SONS, Tamaqua, Pa. 
WEST COAST SHELLS. 
By Progr. Jostaun Keep, Mills College, 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 
\ and beautiful Swrcula Carpenteriana, Gabb. 
To aid in the study of Shells, the pronunciation of the 
Latin names is indicated, and a 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. See a & Co,, Publishers, 208 Post St., San Fran- 
cisco, Cal. 
Please mention this paper. 
THe WEST AMERICAN SCIBNTIST 
Will hereafter be published by the undersigned. Mr. CHARLES R. ORCUTT of San Diego 
will continue as its editor. J f : : : 
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., Sam Francisco. | i 
“Frank H. Lattin, of Albion, Orleans Co., N. Y.,a dealer in natural history specimens, 
instruments, supplies and publications of all kinds. Every A A. Chapter should have a copy of 
his complete catalogue and price-lists before making purchases. His specimens are the very 
best, and his prices will be found to be much lower than those of any other reliable dealer.”’ 
The above we copy from Three Kingdoms, the Hand-Book of the Agassiz Association. Our 
readers would no doubt save money by complying with this advice. ¥ 2 
HAT HAVE YOU to EXCHANGE for a Catarrh Remedy that never Fails? 
Address, Mrs. E. E. Yates, Sharon, Wisconsin. 
