42 
THE - CONCHOLOGISTS’ - EXCHANGE. 
Offered.—Land, Fresh-water and Marine Shells, 
and Devonian Fossils. Wanted.—Mollusca, pre- 
ferably Mesodon, Zonites and Pupa. L, B. ELLIOTT, 
Box 1805, Lowa City, lowa. 
Offered. —Botanical and Conchological Specimens, 
Books, &c. for Books, Papers, Specimens in Conchol- 
ogy, Botany, Microscopy and Entomology. Shells 
are mostly from California and Europe. Plants 
from Connecticut. G.R. LUMSDEN, 54 Second St., 
Norwich, Conn. 
Wanted.—In exchange, Indian Arrow-heads and 
Bird Eggs for Land, Fresh-water and Sea Shells or | 
Bird Eggs. CASPER LOUCKS, York, Pa. 
Wanted.—In perfect condition, with localities :— 
CYPRZA aurantium, nivosa, exusta, Scotti, thersi- 
tes, tessellata, physis, eglantina, fusco-dentata and 
umbilicata. MUREX, Saulie, palma-rosie and tenu- 
ispina. OLIVA, angulata, maura, Melchersi, por- 
phyria, tenebrosa, tremulina. STROMBUS guttatus, 
latissimus and melanostomus. VOLUTA, fulgetra, 
junonia, imperialis, magnifica, reticulata, Rossiniana | 
and rare Asiatic, Australian, African and South 
American Bulimi, Helicidee and Unionide. 
Offered.—50 species of Tertiary and other Fossils 
from Southern States and Europe, Woodward s Man- 
ual of the Mollusca 75 edition: Leidy’s Memoir of 
the Extinct Sloth Tribe, N. A.; Lea’s Syn. of Family 
of Naiades, ’52 edition: Hays’ Descrip. Inf. Max’y 
Bones of Mastodons, 10 plates: Agassiz and Gould’s 
Comp. Physiology, Bohn’s edition: Coultas, Prin. 
Botany, Cryptogamia: lLea’s on a Fossil Saurian of 
the New Red Sandstone Formt’n;. Lesquereux’s 
Cretaceus Flora, 50 plates, Smith’s Mis. Col. Vol. 4, 
Neuroptera, Vol. 6 Diptera and Coleoptera, 3 pp out, 
uncut, or any of the shells on my Price List which 
T may have in duplicate. Parties not having any of 
the shells wanted above, need not apply. W. D. 
AVERELL, Chestnut Hill, Phila. 
_ Offers requested in exchange for many of the 
smaller mollusks of the waters south of Hatteras. 
Exchange List ready. W.H. RUSH, M. D., 1808 
Green Street, Philadelphia, Pa. 
Offered.—Fine specimens marine-and land shells 
for perfect echinoderms. Land and_ fresh-water 
shells from the South and Southwest for reptiles in 
alcohol, D. W. FERGUSON, 138 Wilson St., Brook- 
lyn, N. Y. 
Offered.—15 species Unios, including Aberti, pur- 
puratus, Schooleraftii, and subrostratus, 5 species 
Anodonta. Fossil Oyster Shells. Satisfaction guar- 
anteed. Send list. FRANK J. FORD, Wichita, 
Kan. 
Fine Books for Sale. 
S@OLRDLONE. FORICASH: 
Tryon, Geo. W. Jr. Structural and 
Systematic Conchology, and, also, Manual of 
Conchology. ‘The latest works for Conchol- 
ogists. Subscriptions taken and filled. Cir- 
culars sent on application. 
SPECIAL Noricr :—Second-hand copies of Try- 
on’s Structural and Systematic Conchology 
for sale at $5.00—Cash. Postage prepaid. 
Woodward. Manual of the Mollusca, with 
Appendix, by Ralph Tate. 642 pp: 23 plates, 
441 figures, 270 illustrations. London, 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 : 
Vol. I, complete, oa) Eas O 
Vol. I, minus Nos.1 and 2,. 1 
oO 
Vol uleycompleteyn.| enc. I 00 
Vc' III, complete, 75 
Postage extra in each case at the rate of six 
(6) cents per volume. 
Keep, Josiah, West Coast Shells. The 
latest work on California and other West 
Coast Mollusca. Price $1.75, post-paid. 
See advertisement 
Synonymy of the Species of Strepo- 
matidee, (Melanians) of the United States. 
By Geo. W. Tryon, Jr. Price in cloth, $2; 
Paper, $1.75, post-paid. 
List of American Writers on Recent 
Conchology, with Titles of their memoirs and 
Dates of Publication. By George W. Tryon, Jr. 
Cloth, $2; paper, $1.75 post-paid. 
The Conchologists’ Exchange 
CHESTNUT HILL, 
PHILADELPHIA, PA., U.S. A. 
