Packard.] 32 [October 17, 



Dr. C. T. Jackson said that similar phenomena had been 

 noticed in Russia, and alluded also to the well in Brandon, 

 Vt., which exhibited the same peculiarities. 



Dr. Jackson also spoke of the occurrence of veins of Dol- 

 omite in the Emery mine at Chester, in this State, which 

 contained a crystahzed sapphire. 



Mr. S. H. Scudder was elected Custodian. 



October 17, 1866. 



The President in the chair. Thirty-three members present. 



The following papers were read : — 



View of the Lepidopterous Fauna of Labrador. By A. 

 S. Packard, Jr., M.D. 



This preliminary view of the Lepidopterous insects of Labrador is 

 the result of the explorations of two summers. It -will be seen that 

 many of the most common forms are circumpolar species, common in 

 hio-h latitudes, showing that as regards the insect fauna, the assem- 

 blao-e found immediately upon the coast is almost purely arctic in its 

 character, agreeing closely with the Greenland fauna, and more re- 

 motely allied to that of the Scandinavian mountains, especially the 

 fjelds of Norway and Finmark. In the interior of the country, 

 where it is wanner and more thickly wooded, we should look for an 

 assemblao^e similar to that developed by Dr. Barnston on the shores 

 of Hudson's Bay, which consists of a large intermixture of boreal 

 forms. Such incursions of boreal or " Canadian " species begin to 

 be felt at Caribou Island in the Straits of Belle Isle in southern Lab- 

 rador. 



I am indebted to Mr. S. H. Scudder for a list of the butterflies, 

 and to Mr. B. P. Mann for the loan of a few specimens collected by 

 him in 1864, while a member of the same party as myself. 



Argynnis Boisduvalii Sommer. Caribou Island, Straits of Belle 

 Lsle. From Square Island northward. July 14- August 3. Abun- 

 dant. 



