BUTTERFLIES. 



Diurnal Lepidoptera wanted in exchange. Largest lot of rare duplicates in 

 the world on hand. Will gladly purchase desirable species in perfect condition. 

 American butterflies named free of charge. 



Dr. HENRY SKINNER, 



Academy Natural Sciences, 

 Nineteenth and Race Streets, Pliila., Pa. 



BUTTeRlFL-Y-NETS" 



Graf-Krusi's Silk Nets at $1.25 are the best in the world. 



GRAF-KRUSI, Gais, near St. Gall, SWITZERLAND. 



Electrotypes of Prof. C. V. Riley's Illustrations 



in the Missouri Reports, American Entomologist and elsewhere, can be obtained 

 at moderate prices, also sets and copies of most of his writings, on application to 



Mrs. C. V. RILEY, 2135 Wyoming 1 Are., 



WASHINGTON, D. C. 



A BARGAIN. 



For Sale. My collection numbering over 700 species, with about 2500 exam- 

 ples, all expanded; also a lot of duplicates. There are no type specimens, and 

 nothing unusually rare; it is a good collection of North American Lepidoptera. 



Price only $5O. Address: 



O. D. FOULKS, 



Stockton, Worcester County, Md. 

 A. SMITH & SONS, 269 PEARL STREET, NEW YORK. 



MANUFACTURERS AND IMPORTERS OF 



GOODS FOR ENTOMOLOGISTS, 



Klaeger and Carlsbad Insect Pins, Setting 



Boards, Folding Nets, Locality and 



FOLDING NET HI Special Labels, Forceps, Sheet Cork, Etc. 

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