102 TREES. 



the impression : and the wide and extended range 

 of these and burning springs, prove that this alJ 

 important fossil is to be found in great plenty 

 over the whole country. 



LETTER XXIII. 



Canandaigna. July, 1820. 

 My Dear Sir, 



The larch, or pinus larix, takes a high rank 

 among European trees, for the excellent qualities 

 of its wood and bark. " The most barren moun- 

 tains will grow larches," says Bishop Watson, 

 and the experiment has been successfully and 

 repeatedly tried in Scotland, whose bleak and 

 rugged mountains now exhibit vigorous vegeta- 

 tion. From this tree the Venice Turpentine is, 

 extracted. Taken internally, its resins are aperi- 

 ent, sudorific, diuretic, and stomachic ; and 

 applied externally, they are anodyne, detersive, 

 and antisceptic. 



In this country there are two species of larch, 

 although they have been generally considered as 

 varieties, and they are denominated tamarack, 

 or hack-matack. The larix pendula, or black larch 

 is found in cedar swamps, and the larix micro- 

 carpa, or red larch, on high mountains according 



