o. 112.] 765 



KEMARK AND RECORD--AT THE ADIRONBAC WORKS. 



BY ROBERT CLARK. 



1852. 



Marcli 1. The instruments from which the observations — the 

 monthly results of wliich I here present you— were 

 made, are the property of the Smithsonian Institu- 

 tion, of Washington. The thermometer. No. 510, 

 and the barometer, No. 360, both made by Jas. Green, 

 of New- York. The observations were made at the 

 hours of 6 A. M., and 2 and 10 P. M., as established 

 by that institution. 



The depth of snow here has averaged nearly four feet 

 all winter, and on some hills of hard wood, reached 

 six and seven feet in depth. It has been reduced at 

 times to a foot, but was immediately piled up again 

 by successive storms. 



In testing the tliermometer left by Prof. A. Guyot (No. 

 160, by Jas. Green), on Jan'y 5th it was broken. I 

 sent down to Mr. Green, and on the 9th Feb-y re- 

 ceived a new one similar to it, No. 510. The morn- 

 ing of the 18th Feb'y was the coldest we have had 

 since then: the thermometer then stood at 30^ be- 

 low zero. The morning of the 16th Jan'y, however, 

 was the coldest this winter; notliaving the thermome- 

 ter at that time, I cannot tell how low it stood, but 

 would judge about 34^ below zero. 



Birds. — There have been none of the cross bills (Curri- 

 rosira ./]mcnca?ia cf Wilson,) here this winter ; 

 though hist winter tliey were innumrrable, and were 

 here till the end of May. 



There has also been very i'vw of the snow bird [Frin- 

 gilia Hudsnnia of Wilson,) lierc this winter. 



11. Saw a crow (lyinp; nortlnvard. Aurora bortalis Yisible. 



12. A flock of small birds flew over the village to the 



north. 

 20. A large number of these birds are now in the village; 



I shot one, and found it to be the Snow Bunting 



(^Embcriza jYivalis of Wilson). 



