Subscribers are invited to make liberal use of this cohiiun. Notices over three lines are 

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



Wanted to Purchase or Exchange-— Good fresh specimens of Canadian 

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

 cester, EnjT. 



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

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

 Library, Buffalo, N. Y. 



Membracid^ Wanted. — I wish to purchase perfect specimens (unmounted pre- 

 ferred) of Membracids not in my collection ; also, any works on the family that I do 

 not possess. F. W. Coding, M. D., Rutland, 111. 



Coleoptera. — I have a good supply of Canadian Coleoptera, especially Ceramby- 

 cidffi, which I wish to exchange for species not in my collection^ either American or 

 Exotic. A. H. KiLMAN, Ridgeway, Ont. 



SphingiD/*:, Etc. — Would like to obtain eggs, iarvne or pupa; of Sphingidre, also 

 oi Cetrocampa regalis and Dryocampa imperialis in exchange. Hermann Aich, 96 

 Spring St., New York. 



Canadian Hymenoptera Wanted — Named or unnamed, for examination or in 

 exchange. Correspondence desired with collectors in the Eastern and Western Provinces. 

 W. Hague Harrington, Post Office Department, Ottawa. 



Spiders. — I wish to obtain American Spiders, and will exchange or name and 

 return duplicate species. Nathan Banks, 40 Henstis-St., Ithaca, N. Y. 



Cynipid.*: Wanted. — Named or unnamed Cynipidse wanted by purchase or ex- 

 change. Always accompany the flies with their galls when possible. C. P. Gillette, 

 Ames, Iowa. 



Eggs and Larv^ of Bombyces Wanted. — Will purchase or exchange for eggs 

 or larvae of any species of Gastropacha, Sphingicampa, Coloradia, Euleucoplncus, 

 Gluphisia, Heteropacha Rileyana, Saturnia galbina, Seirodonta bilineata, Nerice 

 bidentata and Parorgyia achatina. Send in tin box. A. S. Packard, Providence, R. I. 



Lepidoptera of Montana exchanged for other desirable species. Chas. A. 

 Wiley, Miles City, Mont. 



I offer Paphia troglodita, Apatura celtis, Colias cccsonia and other Mississippi Valley 

 Diurnals, as well as Sphinges and Bombycids, for species of Lepidoptera, which I do not 

 have. Exchange eggs, larvre, pupa;, or imagoes. R. R. Rowley, Curryville, Mo. 



THE CELEBRATED COLLECTION OF PALAEARCTIC LEPIDOP- 

 TERA MADE BY THE LATE PROFESSOR HEINRICH FREY, . 

 OF ZURICH, IS NOW OFFERED FOR SALE. 



The collection consists of 4,404 species and 15,600 specimens, and is throughout in 

 excellent condition. It is contained in three (3) cabinets, having altogether 100 drawers, 

 corked and glazed. The collection will, for all time, have a high scientific value) con- 

 taining as it does, the types of all the new micro-Iepidoptera (about 80) described by 

 Prof. Frey, of which about jo are uttique. For further information apply to 



DR. M. STANDFUSS, Eidgen Polytechnicum, Zurich, Switzerland. 



JOSEPH BRIDGHAM, SCIENTIFIC ARTIST, 



Illustrations in colors, in black and white, or pen work ; drawings on paper, stone, 

 wood, or copper ; microscopic work ; work done in any locality, or received at studio ; 

 facilities for raising living specimens while illustrating changes. 



References: Prof. A. Agassiz, CamlDridge, Mass.; Prof. C. V. Riley, U. S. Agri- 

 cultural Dept., Washington^ D. C;; Prof. C. O. Whitman, Clarke University, Worces- 

 ter, Mass.; Prof. W. G. Farlow, Cambridge, Mass.; Prof. (}. W. Goodale, Cambridge, 

 Mass.; Prof. A. S. Packard, Brown University, Providence, R. I., U. S. Entomological 

 Com'n.; Prof. H. V. Wilson, U. S. Fish Comn, Wood's Holl, Mass., Dr. H. A. 

 Hagen, Cambridge, Mass.; Prof. H. A. Pilsbry, Academy Nat'l Science, Philadelphia, 

 Pa.; Prof. A. Bickmore. Museum of Nat'l History, Central Park, N. Y. ; Dr. H. H. 

 Rusby, College of Pharmacy, N. Y. 



