Che Conchologists Exchange. 
COPYRIGHT SECURED 
Reed 
Won, If. 
Que 11) & 
No. 1! 
A Publication Designed for Conchologists and 
Screntists generally. 
ISSUED MONTHLY 
BY 
Wil) Do AVERELE, 
Epvitor ano Pus tisHer. 
4t@> 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 
tenth of each month. 
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SUBSCRIPTIONS TO VOLUME II ARE NOW 
DUE. FOR EXPIRATION OF SUBSCRIPTION 
SEEK DATE ON WRAPPER. 
J 5 it is our intention to improve “The 
Conchologists’ Exchange” by every 
means in our power, we present the 
first number of Volume II in the confident 
hope that it will meet with the approval of all 
its readers. In addition to the highly instruc- 
tive articles by Mr. C. F. Ancey, Mr. H. F. 
Carpenter and Mr. Wm. A. Marsh, (who, by 
the way, is seriously thinking of writing a his- 
tory of the Mollusca of the entire state of Mli- 
CHESTNUT HILL, PHILADELPHIA, PA., JULY, 1887. 
nois after the completion of his present article) ; 
we print in this issue an enthusiastic letter from 
Professor W. H. Dall and a-needed rebuke 
from the pen of Mr. Chas. H. Simpson, to that 
class of conchologists who unrighteously be- 
lieve in receiving exchanges with the intention 
of never repaying them. Our “ Young Collec- 
tors’ Corner’’ has been enriched by an original 
article from the pen of Mr. John Ford upon 
“The Helices of Fairmount Park,Philadelphia; 
and the author promises to supplement this, in 
the next number, by describing other genera 
found there. Mr George W. Michael, Jr., also 
contributes some useful hints upon collecting 
Chitons. Some of our readers may think that 
the handsome “ Premium List’? published in 
another column is too liberal to be true. If 
those who think so, will please send us the 
names desired and the subscription price, we 
will speedily convince them that these offers 
are bona fide in every sense. 
CoNCHOLOGY is far more popular abroad 
than it is in America. Why is this so? Simply 
because of the lack of a cheap medium for the 
instruction of students. ‘* The Conchologists’ 
Exchange”’ supplies a long felt want in this 
field and you and your friends should encour- 
age it. 
THE duties of conchologists are three-fold. 
Ist: They should actively study the subject, 
have a collection and improve it. 2nd: They 
should support “The Conchologists’ Exchange,’’ 
their own paper; and recommend it to others. 
3rd: They should enroll their names in a re- 
cognized scientists’ directory and thus place 
themselves in communication with the rest of 
the world. 
A FEW kindly, encouraging words to the 
young naturalist will do him a world of good. 
A curt refusal, a hasty, unwise criticism of his 
work may drive him to pursuits which will ruin 
~ his soul and cause you years of regret. 
