THE MICROSCOPE, 



The representative of what is best, most instructive and progressive in 

 American microscopy. Leading contributors for beginners and experts. 

 Send postal card for free sample copy and announcement for 1889. 

 THE MICROSCOPE PUBLISHING CO., 



25 Washington Avenue, Detroit, Mich. 



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, Phila., Pa. 



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

 limited quantity of JAPANESE LEPIDOPTERA and COLEOPTERA of liis 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. Fryer's magnificent work upon the Rhopalocera of Japan, to be 

 issued in three parts, 4to. , 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 Samue" 

 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 IS77, Philadelphia, Pa. 



Subscribers are invited to make liberal use of this cohimn. Notices over three lines ai-i 

 liable to be shortened if necessary. All insertions free to subscribers. 



OuTHOPTERA WANTED. — I am especially interested in the study of the Orthoptera, 

 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 i)lease correspond with me. Lawrence 

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



Wanted to Purchase or Exchange — Good fresh specimens of Canadian 

 Diurnal Lepidoptera, especially from west and north. H. J. Elwes, Preston, Ciren- 

 cester, Eng. 



Hemiptera Wanted. — Exchanges in Hemiptera desired, especially in Homoptera, 

 either named or unnamed. Correspondence solicited. E. P. Van Duzee, Grosvenor 



Library, Buffalo, N. Y'. ' 



1', 



To exchange for perfect specimens of Lepidoptera not in my collection, examples^ 



of Melitica McGlashani and Coenonympha ochracea from Nevada. S. W^ Denton,,^!' 



W^ellesley, Mass. 



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