30 THE - CONCHOLOGISTS’ - EXCHANGE. 
Fine Books for Sale. 
SOLD ONLY FOR CASH. 
Tryon, Geo. W. dr. Structural and 
Systematic Conchology, and, also, Manual of 
Conchology. ‘The latest works for Conchol- 
ogists. Subscriptions taken and filled. Cir- 
culars sent on application. 
SprciAL Noricr:—A few second-hand copies 
of Tryon’s Structural and Systematic Con- 
chology for sale at $5.00—Cash. Postage 
prepaid. 
Sowerby, J. Genera of Recent and Fos- 
sil Shells for the use of Students in Conchol- 
ogy and Geology. Illustrated with 264 origi- 
nal plates. 2 volumes, 8 vo; half morocco. 
London (N. D). Price $15.00. 
Woodward. Manual of the Mollusca, with 
Appendix, by Ralph Tate. 642 pp: 23 plates, 
441 figures, 270 illustrations. Toudom 1880 
edition. Price $2.50, postpaid. Formerly, 
$2.60. 
The same, 1875 edition, $2.00 postpaid. 
Random Notes on Natural History. 
This journal, now out of print, is rapidly be- 
coming scarce. We offer the back numbers 
containing the previous chapters of Mr. H. 
F. Carpenter’s very instructive article upon 
‘“The Shell Bearing Mollusca of Rhode 
Island,” Mr. John Ritchie, Jr.’s “ Check 
Lists of Shells,”’ besides numerous articles of 
interest to the conchologist, at the following 
prices : 
Woltelncompletey koa yy) kgO 
Vol. I, minus Nos. 1 and 2,. I 00 
Welly 101, @opraye WS; Ge I oO 
Wall, IMLS Ceroyanyol Keto eee Re ee 75 
Postage extra in each case at the rate of six 
(6) cents per volume. A fine chance to 
sone the best descriptive history of Rhode 
sland shells ever written. ‘The subsequent 
shi upters of Mr. Carpenter’s article are now 
being published in “The Conchologists’ 
Exchange,” beginning with No. 12, of 
Volume I. 
The American Naturalist. Odd copies 
for sale as follows: Vol. X, January to Sep- 
tember; Vol. XV, January; Vol. XVI, July 
to September ; Vol. XV If, January, May to 
December; Vol. XVIII, January and Feb- 
ruary ; Index to Vol. XII. Prices 20 and 
25 cents each. 
Westwood, J. O. Arcana Entomologica; 
or, Illustrations of New, Rare, and Interest- 
ing Insects. 2 vols, half morocco. London, 
1845. Price $27.50. 
ADDRESS 
The Conchologists' Exchange 
CHESTNUT HILL, 
_ PHILADELPHIA, PA., U.S. A. 
Helix (Aglaia), fidelis, Gray, Oregon. 
WEST COAST SHELLS. 
3y Prof.Josiah 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. 
Surcula Carpenteriana, Gabb. 
To aid in the study of Shells, the pronuncia- 
tion Latin names is indicated, and a Glossary, 
Key, Biographical Index of Naturalists, anda 
Check List are added. Beautifully printed and 
bound. Price, postpaid, $1.75. 
Bancroft Brothers & Co., Publishers, 532 
Market St., San Francisco, Cal. 
Please mention this paper. 
