LOVERING’S EXPERIMENTS. 15 
ing vehemently, and badly burned. Much discouraged, I however 
proceeded. It crystallized the second time, and was put into a mould. 
December 20. Weighed the sugar from the 23.25 lbs. molasses boiled 
on the 17th November, as follows, viz. : 
Serer Wee a ENT SP a se te Pat a 11 Ibs. 
PE Ar ay geen me) a AS ROBT as pA eM srl Salant aa tm 43 
Second crop of crystals from the 23.25 lbs. molasses, - _- oan = - 6.25 Ibs, 
Deduct pro rata for the fourteen feet excess over one fiftieth of an acre, 313 
Second returns from one fiftieth of anacre, - - -— - - - 5.877 
Multiply by a: eA ESTA Ga RE, Lape el REL Baa i ON ae 50 
Product of an acre from the molasses, - - - - = = 298.85 
Then we have, as the whole final result of an acre of canes, 
Sugar. Molasses. 
ist returns, - - - - - - - - - : 928 Ibs. 1186.50 Ibs. 
2d ‘© (Sample IV.) - - - - : - - 293.85 
And deduct molasses converted, - - - - : 293.85 
1221.85 892.65 
And 12 lbs. molasses per gallon gives - 2 ale - - - 74.39 gal. 
Say sugar, per acre, 1221.85 lbs.; molasses, per acre, 74.39 gal- 
lons; sugar, per cent., 7.35 ;* molasses, per cent., 5.37; sugar and 
molasses, 12.72 per cent. 
I will repeat here, that, owing to the accident before stated, this 
sugar, (Sample No. IV.,) 2d returns, is not nearly of so good quality 
as it otherwise would have been. 
FIFTH EXPERIMENT. 
November 9. I must now mention that the last experiment was in- 
tended to have been on a considerably larger scale than those pre- 
vious. Each day’s work was, however, kept distinct and separate 
from the others, thus enabling me to determine it at any point. 
Having thus proceeded to, and finished the clarification of the 4th 
parcel, (Nov. 8th,) and the weather becoming and continuing very 
warm, (thermometer as high as 74°,) I observed a very sudden and 
unfavorable change in the working of the juice. Instead of clarify- 
ing perfectly and with great facility, as at first, the defecation was dif- 
* It may, perhaps, appear inconsistent to the casual observer, to find 7.85 per cent. 
of sugar obtained, when the juice only contained 7.29 per cent , as shown by the po- 
lariscope. This is readily explsined. 1st. by the causes stated in a previous note; 
and 2d—the polariscope indicates pure sugar; whereas the sugar produced contains 
about four per cent. free moisture, and about three per cent. of molasses adhering to 
the crystals, also gum, &c., which would account for much more than the apparent 
excess. 
