(145) 

 2d Race IMPHEE. 



1. Proacocia, (early Sorgo). 2. Ooui-se-a-na, (Otaheitan). 

 3. White Imphee, (Nee a- gana.) 4. Black Imphee, (Nig- 

 errima). 5. Red Imphee, (Cerasina, cherry red) Shla- 

 goo va. 6. Liberia, (Liberian). 



In Tennessee the nomenclature is shortened by all being 

 called "red" or "black," and "Chinese" or "African." 



Sorghum, submitted to a pressure'of ten tons, will yield 

 about 60 per cent, of juice, leaving 40 per cent, of woody 

 fibre, gum, juices, etc. Of this 60 per cent, about 10 per 

 cent, is sugar, both cane and grape, or, if not reduced to 

 sugar, it will make about 25 per cent, of syrup, or 15 per 

 cent, of the expressed juice. 



However, in fact, this amount varies very much, accord- 

 ing to the soil on which it is raised. On rich bottom land, 

 where the cane grows to be very tall and large, there is 

 more water and less sugar in the juice, while on poor, sandy, 

 dry land the proportion is much greater. In some speci- 

 mens of syrup, when boiled down thick and allowed to stand,, 

 crystals of sugar will form all through it. These crystals 

 are in the form of a modified rhombic prism. But in the 

 generality of specimens, from the presence of an acid, the 

 cane sugar is converted into glucose and no manipulation is 

 sufficient to cause it to crystalize. A few years ago, at one 

 of the expositions held in the city of Nashville, ajar of this 

 sugar was on exhibition, and there is a fair specimen now in 

 the cabinet of this Bureau, and, as before stated, some excel- 

 lent specimens at Washington. Should an early and cheap 

 means be devised to secure rapid crystalization the result 

 will be to bring down the price of sugar. Molasses, which, 

 sold at one dollar per gallon, was brought, by the introduc- 

 tion of sorghum syrup, down to twenty five and thirty cents. 

 There is so little difference between this grape and cane 

 sugar, that it is to be hoped some process may yet be in- 

 vented by which the syrup can be crystalized at will. The 

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