[ 6 94 j 
thofe bodies effe&ed by -iron, p. 47. Ornaments in Portland, and other, might be 
preferred by being waftied or brufhed with water, in which there is a folution of 
iron, p. 48. Common fea-fand, with a fmall admixture of the folution of iron, 
may become a very ufeful Hone, ibid, 
Sugar-Cane. The two methods in ufe for cultivating itbeforeMr.Cazaud’s, p. 210, 21 1, 2 12. 
Explanation of Mr. Cazaud’s method, and objections to it, p. 2 1 3. Natural hiftory of 
the cane, p. 218. Hiftory of its roots and productions underground, p. 219. Should 
be put into the ground as foon as cut, p. 221. Firft productions, what they are, 
fbid. P«.oots of the firft and fecond order deferibed, p. 223. Roots of the third 
order, what they are, p. 224. Second productions deferibed, ibid. Third produc- 
tions deferibed, p. 226. Proof of the neceflity of planting in May, p. 227. Canes 
derive their nourifhment from the three orders of roots for the whole of their 
duration, p. 228. Strong argument againft the pretended antiquity of the ftools, 
p. 231. And of the inutility of replanting when the ftump is not raifed above the 
ground, ibid. Rattoons derive their nourifhment only from three orders of roots, 
p. 233. Advantage of cutting the canes in the ground, and mifehief of the method 
of moulding up the ftump, p. 233. Why rattoons are forwarder at the twelve 
months end than planted canes at the end of fifteen, ibid. And why thofe cut at 
the end of ten, eleven, or twelve months, are finer than thofe which have flood 
fixteen, ibid. Why fine rattoons are never got from grounds called exhaufted, 
p. 236. Why thofe cut before the time, are thofe which flood beft, p. 237. Dif- 
ference in the time of jointing of the canes, and in the different numbers of the 
rows of their roots, what owing to, p. 238. Advantages of chuling the rainy 
feafon for planting, p. 239. Hiftory of the joints of the cane aboveground, p. 241. 
Calculation that may be made of their number, ibid. Cane of the thicknefs of a 
pen, and only three inches long, with its two and twenty joints, diftinCt, p. 244. 
Fall of the leaf only criterion of the maturity of the joint to which it adhered, 
p. 245. Relative maturity of the cane, what it depends on, p, 246. Four thoufand 
gallons of juice yielded equally by canes cut at ten and fifteen months end, p. 247. 
Deductions drawn from this faCl, p. 248. Account of the cane in different foils, 
p, 250. The growth of a plant in America not to be eftimated by what we fee it in 
our hot-houfes, p» 250. Forty-eight to fifty the greateft number of ufeful joints, 
p. 252. EffeCls of dunging the foil in which canes are planted, p. 261. Cane 
never grows to any purpofe after the thirteenth month, p. 264. Hiftory of a Angu- 
lar revolution in the cane, and of the arrow which follows it, and conftitutes the 
iaft ftage of the cane’s exiftence, p, 264. The quantity of the juice of the cane 
leffened by dry weather, ibid. Drying-up of the joints, p. 265. Hiftory of the 
cane according to the two different methods of cultivation, and in different years, 
the favourable, the dry, and the rainy, p. 270. 
Sulphur* None in the femitranfparent Auvergne fpar, p. 15. 
Tartar 
