The Conehologists’ Exchange. 
COPYRIGHT SECURED 
VoL. I. 
No. 12 
A Publication Designed for Conchologists and 
Scientists generally. 
ISSUED MONTHLY 
BY 
NVM sy = Rie, 
Epitor ano PustisHer. 
8G Correspondence upon Conchology, as well as 
reliable items of interest concerning the Mollusca, their 
habits, localities, etc., kindly solicited from all. 
Matters for publication must be received by the 
fifth of each month. 
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SUBSCRIPTIONS TO VOLUME II, BEGINNING 
WITH JULY NEXT, ARE NOW DUE. 
| ITH this number we finish the first 
year of our journalistic existence. 
One year ago we spent a much- 
needed vacation in doing little else but think- 
ing about the needs of American conchologists. 
The outcome of that thought was a postal card 
which we rather timorously styled “Volume I, 
auth, 
CHESTNUT HILL, PHILADELPHIA, PA., JUNE, 1887. 
Number 1,’? and announced that it was the 
first number of ‘The Conchologists’ Ex- 
change.” Since that time, with the aid of 
our friends (and we trust every subscriber is a 
friend), our paper has increased in size and, if 
we are to believe the many testimonials we 
have received, in usefulness as well. 
“THE CONCHOLOGISTS’ EXCHANGE,” in its 
present form involves a greater outlay for print- 
ing than formerly, as you can readily see. That 
being the case, we feel called upon to ask a 
slightly increased subscription price for Volume 
II, and to show you that we are liberally in- 
clined, we promise to give 2% each number, in- 
formation to the value of a year’s subscription 
and also beg leave to announce that, begin- 
ning with the July number, we propose to 
throw open the “Zxchange Column,” to the 
free use of all subscribers. | Now, as we have 
declared our intentions, we must ask you to 
send us fifty (50) cents as the subscription price 
of Volume II. We trust you will all respond 
to this very reasonable increase in price and 
that the dividend declared will meet with no 
fault-finding among the stock-holders. 
A FITTING companion to the very able arti- 
cles by Mr. C. F. Ancey, Mr. Wm. A. Marsh, 
and Dr. A. Sterki, has been found in the 
“Shell-bearing Mollusca of Rhode Island,” by 
Mr. Horace F. Carpenter, whose reputation for 
accuracy in describing the Mollusca, is so well- 
known. This article is a continuation of the 
articles on the same subject, published in 
“Random Notes on Natural History,” the 
discontinuation of which, in December last, we 
noted in a former issue. We can furnish our 
readers with the back volumes of ‘Random 
Notes,” containing the former numbers of Mr. 
Carpenter’s interesting history of Rhode Island 
shells, with the exception of Nos. 1 and 2, 
which, however, were only general in their 
treatment of the subject. Please see adver- 
tisement. 
