To subscribers only, the Entomological Society will sell a few of each 

 of the following volumes at 7Sc. each. Of some of these there are only a 

 few to spare, and as soon as the surplus is reduced the price will be raised : 

 Canadiau Entomologist, volumes 3 to 21 inclusive. The following reports 

 will be sold to subscribers only at 25c each until surplus is exhausted : 

 1874, 1880, 1882, 1883, 1884, 1885, 1886, 1887, 1888, 1889. 



LABELS FOR COLEOPTERA.— In order to benefit subscribers the 

 Entomological Society will sell the list of labels for Coleoptera, noticed on last 

 page of cover, for 25c. per set. 



Part XI., Vol., 3, issued 15th April, 1891. Contents : Apatiira flora, Satyrus 

 Meadii, Chioiiobas chryxus, and the early stages of each. Price, $2.25 ; 3 plates. 

 Vol. I., bound, $35 ; Vol. II., $40. 



Apply to HOUGHTON, MIFFLIN & CO., Cambridge, Mass. 



COIvXvE^C^IOIlV OPi" IP»f»E^CrS P^OIi s^^r^E^* 



Comprises fifty-two drawers (lo x 14 in.) butterflies taken by the undersigned in 

 Mass. and N. H., spread, arranged, and labelled with name, locality and date — 88 

 species (over 2,000 specimens), beside many larvae and pupae; very complete and care- 

 fully assorted series, and many very rare species ; twenty drawers unlabelled miscell- 

 aneous insects (1,500 species) collected in Mass. All nearly new and in first-class con- 

 dition. Drawers lined with cork, paper covered ; sliding glass covers. All in three 

 closed cabinets. F. H. SPRAGUE, Wollaston, Mass. 



Having for some time past been actively engaged in the study and collecting of this 

 group of butterflies, I would be pleased to hear from parties having any perfect specimens 

 to sell or to exchange. Western species particularly wanted. Eggs of any species also 

 desired. 



PHILIP LAURENT, 1306 Chestnut St., Philadelphia, Pa. 



"JOSEPH BRIDGHAMr SCIENTIFIC ARTIST, 



Illustrations in colors, in l)lack and while, 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, Cambridge, 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. G. 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 Com'n, 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. 



