PS YC 'HE A D I r EBTISEB. 



INSECT LABELS 



of those sizes, printed in red. at 

 two cents a sheet. 

 Send stamp for sample. 



No. 2.— 50 on a shoot. 



Gko. Dimmock. Cambridge, Mass. 



LECTURER AND INSTRUCTOR IN ENTOMOLOGY 



Secretary of the Editor of PSYCHE, Secretary of the 

 Entomological Section Organ of the Cambridge 



of the Boston Society Cambridge Entomological 



of Natural History." Entomological Club. Club. 



Professional advice furnished concerning noxious insects. 



A Half-Hour Lecture about. Insects is giv n every Tuesday noon (12 o'clock).— Fee for attendance: 25 cts. 



Office Hours: TUESDAY afternoon, from three to fee o'clock. 



19 P^ltoai Hte>e«s% f|mml^i«lii©ii Iai#* 



COLEOFTERA FOR EXCHANGE. 



Cicindela puritana, Cyllodes biplagiatus, or other Coleoptera will be 

 exchanged for Nos. 1, 3, 6, 7, 10a, 11, 16. 17, 19, 20, 23. 27, 28a, 29, 

 31, 35, 36a, 36b, 37. 37a, 40, 43, 46, 47. 55, 55b, and 58 to 66, of 

 Crotch's List. Geo. Dimmock, Cambridge. Mass. 



BOOKS FOIS SALE. 



Pacific Railroad Explorations and Surveys; 13 vols, in oiiginal 

 binding, with' the solution of the problem': How to refer definitely 

 and simply to the separate parts of the work. 



Boston Journal of Natural History. Vol. II. (Formerly the 

 property of Dr. A. A. Gould) ; . . • . . bound 



Bost. Journ. Nat. Hist. Vol. VI. (Formerly Dr. G.'s ; contain- 

 ing manuscript notes by him) .... bound 



Bost. Journ. Nat. Hist, Vol. V, No. 1. (p. 1-136; pi. 1-13) 



Bost. Journ. Nat, Hist. Vol. V, No. 4. (p. 417-505; pi. I-IV. 

 XXIII, XXIV, XXX, XXXI) ... 



Proceedings of the Boston Society of Natural History, Vol. I. 

 (Formerly Dr. Gould's ; with his autograph) . bound 



Enumeration of Hawaiian Plants, by Horace Mann, Jr. 



Catalogue of the Phamogamous Plants of the United States, 

 east of the Mississippi, and of the Vascular Cryptogamous Plants 

 of North America, north of Mexico. [Four for one dollar] 



Apply to B. Pickman Mann, Cambridge, Mass. 



s:;5.oo 



7. Oit 



7.00 

 1.75 



2.00 



.50 



.35 



