Vol. I, No. 1. 
This is the first issue of ‘THE CONCHOLOGIST’s 
EXCHANGE.” As encouragement is received it will 
assume the form of a printed sheet with columns for 
“ Exchanges in Mollusca,” ‘‘ New Localities,” “Answers 
to Correspondents,” &c. This, our first number, has 
been sent to 500 Conchologists. Subscription price, 25 
cents per annum, post paid. Exchanges of 20 words, 10 
cents; for each additional 10 words the charge will be 5 
cents. The Conchologist’s Exchange will be issued 
semi-monthly, and will endeavour to become a cheap 
and useful medium for the exchange of those most beauti- 
tiful productions of nature—‘ The Mollusks.”’ 
EXCHANGES FOR 
CYPREA erosa, L. lynx, L. 
CERITHIUM, maculosum, 
Kien. eburneum Brug. 
CYCLOSTGMA sulcatum, Lam. 
elegans Mull. 
LYMNA zebra Tryon. 
STROMBINA bicanaliferay Sby. 
Fissurella volcano. Rve. Col- 
umbeila fulgurans Lam. 
Prof. D. S. SHELDON, 
Davenport, Ta 
SUCCINEA putris L, 
HELIX arbustorum L. 
‘* nemoralis L 
ericetorum, Mull. 
“* rotundato, Mull. 
«« ~\apicida L, cellaria Mull 
Pupa muscorum, L. 
Cionella subcylindriea. 
E LEHNERT, 
Washington, D.C. 
GONIOBASIS simplex, Say. 
carinifera, Lam. bella, Con. 
perangulata, Con. 
sordida Lea symmetrica, Hald 
ebenum, Lea 
Melantho subsolida Anth, 
Unio-rubiginosus Lea. 
pustulosus Lea., gracilis, Barnes 
W. A: MARSH, 
MOLLUSCA ONLY. 
HELIX albolabris, Say. alter- 
nata, Say. clausa, Say. 
elevata, Say. fallax, Say. 
hirsuta, Say. inflecta, Say. 
solitaria, Say. monodon. 
Rackett. Sayii. Binney. 
Pupa armifera, Say. corticaria, 
Say. Fallax, Say. Unio elegans 
Lea; lachrymosus, Lea; parvus, 
Barnes 
EDWARD A. ENOS, 
Connersville, Indiana. 
NASSA fossata Gld. 
Purpura saxicola Val. 
Amycia gausapata Gas. 
Adula falcata Gld. 
Acmeza spectrum Esch. 
scabra, Nutt. pelta, Esch. 
Hipponyx cranioides, Carp. 
G. W. PUTERBAUGH, 
Greenfield, Indiana. 
American and Foreign 
Unionidae for exchange. 
Send for list. 
No responsibility will be as- 
sumed for the standing of the 
Aledo, [llinois.|above parties. 
ae. WILLIAM D. AVERELL, Proprietor, 
CHESTNUT HILL, PHILADELPHIA. 
