SUBSCRIBERS 



will greatly oblige the Secretary by sending in their subscriptions prompt- 

 ly, and by addressing them always to him, not to the Editor, who has to 

 forward them by mail, the remittance thereby taking a double chance of 

 getting lost or stolen, and which necessarily increases the time before the 

 acknowledgment can reach the sender. 



Your subscription for 1888 is NOW DUE. Kindly see to it, and 

 thereby save much trouble to the Secretary, 



W. E. SAUNDERS, 240 Central Avenue, 



London, Ont. 



FOR 50 CENTS WE WILL SEND YOU FOR ONE YEAR 



THE CONCHOLOGISTS' EXCHANGE 



The only shell paper in America ; 16 pages monthly, and full of the latest and best 

 Shell News, and the following handsome premiums : A neat box of choice Land Shells, 

 Fresh- Water Shells, or Marine Shells, or Berlin H. Wright's New Check List of North 

 American Fresh Water Bivalves, or D. D. Baldwin's Land' Shells of Hawaii. Don't 

 wait, but send 50c. now to WM. D. AVERELL, Publisher, 



Chestnut Hill, Phia., Pa. 



REV. W. J. HOLLAND, Ph. D., Pittsburgh, Pa., offers for sale or exchange a 

 limited quantity of JAPANESE LEPIDOPTERA and COLEOPTERA of his own 

 collecting. Has also on hand a large, mass of West African and Asiatic Lepidoptera, 

 for sale or exchange. Has been authorized to receive subscriptions in the United States 

 and Canada for Mr. H. Pryer's magnificent work upon the Rhopalocera of Japan, to be 

 issued in three parts, 4 to., profusely illustrated with colored plates, at $4 a part. Part I 

 is now ready to deliver to subscribers. 3-12 



A new and revised List of the Coleoptera of America north of Mexico, by Samuel 

 Henshaw, assisted by Dr. George H. Horn. Published by the American Entomological 

 Society. Edition limited. Price, $1.25. Price List of Entomological papers for 

 sale, mailed on application. 



E. T. CRESSON, Treasurer. 



P. O. Box 1577, Philadelphia, Pa. 



Under this heading two lines vrill be inserted for :?.5 ets.; additional matter, 5 cts. per line. 



Outhoptera Wanted. — I am especially interested in the study of the Orthopte'ra, 

 and wish to obtain, either by exchange or purchase, perfect specimens of these insects 

 from all parts. North American and West Indian material preferred. Persons, 

 having specimens for sale or exchange will please correspond with me. Lawrence. 

 Bruner, West Point ; Cuming Co., Nebraska, U. S. A. 



