82 
THE - CONCHOLOGISTS? + EXCHANGE 
“‘Promises to become a valuable publication.”’ 
Allow me to thank you for your kindness in sending 
to me the first numbers of ‘“The Conchologists’ Ex- 
change.”’ It promises to becomea valuable publication 
for persons interested in the Mollusca. 
Charles Prosser, Instructor, 
Ithaca, N. Y. Cornell University. 
“‘A perpetual surprise.’” 
The little exchange notice you inserted for me has | 
been the means of adding several hundred species to 
my cabinet. ‘‘The Conchologists’ Exchange’’ is a 
perpetual surprise. I could not get along without it. I 
aim to put the sample copies you send where they will 
do good. George W. Puterbaugh, Greenfield, Ind. 
“‘Convenient.’” 
I like your convenient ‘‘Conchologists’ Exchange’’ 
very much. Enclosed please find subscription com- 
mencing with Vol. I. Wm. Sutton, 
San Francisco, Cal. 
‘“‘Wants an enlargement.”’ 
The collectors will soon demand an enlargement of 
your convenient publication. H. A. Pilsbry, 
Sept. 23, 1886. Davenport Acad. of Sciences, Iowa. 
[They have it.—Ep. May, 1887.] 
“‘We have'needed just such a paper.”’ 
I have just returned home and found your bright 
little ““Exchange’”’ awaiting me. We have needed just 
such a paper J. A. Singley, Giddings, Tex. 
[The above are a few extracts from several score of 
similar letters, showing the esteem in which we are held. 
We wish to increase our subscription list very largely 
and would thank our subscribers to see that all their 
friends subscribe as well, and would again invite their 
attention to our premium list upon another page.—Eb. ] 
OUR PREMIUM LIST. 
A CHANCE FOR WORKERS KEEN AND 
BRIGHT. 
Send $1.75 and the names of 5 subscribers, 
and we will forward to the originator of the 
club, one copy of Dr. Hays’ “Descriptions of 
the Inferior Maxillary Bones of Mastodons,” 
29 plates; or, in lieu thereof, 50 cents’ worth 
of shells at List prices. 
Prof. J. E. Kingsley’s ‘Naturalists’ Assist-_ 
ant,’’ 228 pages, will be sent post-paid for 
$5.25 and the names of 15 subscribers. 
Woodward’s ‘Manual of the Mollusca,’’ 
1880 edition, will be sent free for $10.50 and 
the names of 30 subscribers. 
Tryon’s ‘Structural and Systematic Con- 
chology,” cheap edition, will be sent free for 
$17.50, and the names of 50 subscribers. 
Tryon’s “Monograph of the ‘Terrestrial 
Mollusca of the United States,’ plain edition, 
will be sent free for $35 and the names of 100 
subscribers. 
Sowerby’s “Genera of Recent and Fossil 
Shells,” 264 plates, %-morocco, 2 volumes, 
8vo. sent free for $52.50 and the names of 150 
subscribers, 
AND LOOK! 
For $87.50 and the names of 250 sub- | 
BES” scribers, we will send, express prepaid, 
Bes one of 
Queon’s Educational Microscopes. 
mounted upon a brass tripod stand with adjust- 
able eyepieces, object glasses and diaphragm 
complete. 
A COMMISSION of 25 per cent. in CASH 
will be paid in lieu of the above premiums. 
Note.—Parties desiring to secure the bene- 
fits of the above truly liberal offers, must not 
keep the names of subscribers together with 
the subscriptions, until they have completed 
their list, but should send them soon as received 
| and we will keep an exact account of them. 
SPECIAL NOTICE. 
Wewill esteem it a favor if all those who are 
raising Clubs at the former price of 35 cents, 
will send us their addresses. The Premium List 
and the prices there mentioned will be held 
open until Sept. 15, 1887, so that those who 
intend to subscribe may find it to their advant- 
age to form Clubs of five or more, as single 
subscriptions to Volume II. will not be taken 
at less than the new rate of 50 cents. 
A fine chance for an active worker. 
