INDEX. 



Sulphur, and sulphuric acid ; all substances containing 



them, said to be manures, - 209. 210, 239 



sulphuric acid, combined in barytes, destroys 



insects, - - - . - 123 



Swallows, migration and return of, - - 345, Sec. 



Swallow tree, account of one, - - - 346 



Swine, diseases of. Staggers, and remedy, - - 51,52 



T 

 Tangier wheat, improperly called big, or French rye, - 277 

 Taurine cloth, made from hair of cattle, and a small pro- 

 portion of wool, - - - 403 

 Taylor, Col. on his cedar hedges, - - - 195 

 on cultivating Indian corn, - - 197 

 Tennent, Dr. his account of calcareous substances, - ^ 204 

 Terrapins, land, destroy beetles, - - - 281, 2 

 Thorn, Newcastle, or American cockspur, highly approved, 10, 16 

 said to be preferable to any others ; and 

 the American hedge, or Virginia thorn, 

 the next best, . - . 373 

 found in great abundance, in our new countries, 1 18 

 trees in thorn hedge rows, highly injurious, 242, 3 

 hedges, see remarks on, - - - 243 

 lateral branches only, should be trimmed, or cut ; 

 the head should grow for ten or twelve years, 244 

 account of the thorn plants in William Neill's 

 hedges, ----- 378 

 Threshing, a simple machine for, with a cut, - - 400 

 Tilton, Dr. James, on the propriety of a farmer living on 



the products of his own farm, - 142 



Timber, hemlock and white pine, their qualities and de- 

 scription, - 108, 109 

 hickory, how it can be usefully employed, and 



proper time to fell it, - - 110 



changes of, in our forests ;-— proofs of this doc- 

 trine, - - - - 104, 5, 6, 374, 6 

 comparative value of, - - 104,8,9,10 

 does not designate quality of soils, - ib. 



