THE CHINESE SUGAR-CANE. 61 



will be found translated for the present year's 

 Working Farmer. He gives the density of 

 his sap at 1.050 to 1.075, while that examined 

 by myself was uniformly found to be 1.085, with 

 but little variation, and in every case some small 

 corrections for temperature, which would increase 

 the specific gravity slightly. The average density 

 given by various observers in the West Indies, 

 of juice from the several varieties of sugar-cane 

 grown in these colonies, is about 9 degrees 

 Baume, corresponding to a specific gravity of 

 1.064, — less, considerably, than mine. From 

 this fact, however, it is not to be inferred that 

 the juice of our cane abounds more largely in 

 saccharine matter than that of the West Indies ; 

 for such probably is not the fact ; for the former 

 is known to contain a larger proportion of salt 

 and vegetable matters than the latter. It argues 

 only the remarkable adaptation of the Chinese 

 cane to our climate and soil. M. Vilmorin ob- 

 tained from this ' sap ' of the densities named, 

 from 1.050 to 1.075, on the 



13th of October, 1853, 10.04 per cent, saccharine matter. 

 28th of November, " 13.08 " *' • " 



28th " (2nd trial) 14.06 



14th " 1854, 16.00 



Of the latter, 11.75 were uncrystallizable, and 



