288 THE CANADIAN ENTOMOLOGIST. 



copper mines, a north-west passage, etc., in the years 1769, 1770, 1771 

 and 1772, by Samuel Hearne," published in 1796, I came across the 

 following interesting notes on page 307 : 



" Frogs, Grubs, and Other Insects. 



" Frogs of various colours are numerous in those parts as far north 

 as the latitude 61". They always frequent the margins of lakes, ponds, 

 rivers and swamps ; and, as the winter approaches, they burrow under 

 the moss, at a considerable distance from the water, where they remain 

 in a frozen state till the spring. I have frequently seen them dug up 

 with the moss (when pitching tents in winter) frozen as hard as ice, in 

 which state the legs are as easily broken off as a pipestem, without 

 giving the least sensation to the animal ; but by wrapping them up in 

 warm skins, and exposing them to slow tire, they soon recover life, and 

 the mutilated animal gains its usual activity ; but if they are permitted to 

 freeze again, they are past all recovery, and are never more known to 

 come to life. The same may be said of the various species of spiders 

 and all the grub kind, which are very numerous in those parts. I have 

 seen thousands of them dug up with the moss when we were pitching 

 our tents in the winter, all of which were invariably enclosed in a thick 

 web, which Nature teaches them to spin on those occasions ; yet they 

 were apparently all frozen as hard as ice. The spiders, if let fall from 

 any height on a hard substance, would rebound like a gray pea ; and all 

 the grub kind are so hard frozen as to be as easily broken as a piece of 

 ice of the same size ; yet, when exposed to a slow heat, even in the depth 

 of winter, they will soon come to life, and in a short time recover their 

 usual motions." 



In Dr. H. Guard Knaggs's Lepidopterisi's Guide, on page 49 of the 

 1871 edition, under the heading of "Ailments of Larvte," I find the 

 following : 



" Frost Bite. It is well known that larvae, which have been so stiffly 

 frozen that they might have been easily broken, have afterwards recovered. 

 The chief thing to be remembered in the treatment of such cases, is that 

 the thawing should be effected very gradually — rapid thawing being 

 dangerous," 



