1856.] The Chinese Sugar- Cane. 5§9 



On the 1 3tli of this month, finding the seed fully ripe, I had the € 

 fodder pulled, and the seed heads cut. 



Yield of fodder per acre, 1,000 to 1,300 lbs. 

 Yield of seed per acre, 25 bushels of 36 lbs. to the bushel. 

 First trial of mill, 70 average canes gave 20 quarts of juice. 

 606 average canes, passed once through the rollers, gave 38 gal- 

 lons 1 quart of juice; passed a second time through, gave 2 gal- 

 lons of juice; the 40 gallons, 1 quart, gave 8 gallons thick Syrup. 



I carefully measured an eighth of an acre, having the best canes, 

 and the best stand, another eighth having the poorest canes and the 

 poorest stand. The result I give below, the canes having passed 

 once through the roller. 



BEST EIGHTH OF AK ACRE. 

 Yield of juice from 3,415 canes - 253 gallons. 



" " syrup from 253 gals, juice - 58^ " 



Rates per acre of syrup - - 468" " 



POOREST EIGHTH OF AN ACRE. 



Yield of juice from 2,550 canes - 179 gallons. 



" " syrup from 1 79 gals, juice - 43J- " 



Eates per acre of syrup - - 346 " 



Weight of 30 selected canes - - 491 lbs. 



" " juice pressed out - - 25f " 



" " crushed cane - - - 23 " 



Loss in crushing: - - - 5. <; 



Weight of crushed cane dried in sun - 91 " 



The following tests were made at the mill, by Dr. Robert Battey 

 of Rome, Georgia, a graduate of the Philadelphia College of Phar- 

 macy : 



Specific gravity of juice - - . 1.085 



" " syrup - - . 1.335 



" " New Orleans syrup - 1.321 



Thermometer applied to syrup - - 770 



" " juice - - 70° 



Saccharometer " juice - - 25^^° 



The juice should be placed in the boilers immediately on being 

 pressed out, then boiled slowly, until the green scum ceases to rise ; 

 then stir in a tea-spoonful of air-slaked lime to five gallons of juice ; 

 continue skimming and boiling until the syrup thickens and hangs 

 down in flakes on the rim of the dipper. 



I have made the clearest syrup by simply boiling and skimming, 

 without lime or other clarifiers. 



