102 REPORT OF THE COMMISSIONER OF AGRICULTURE. 
portion of yield of sugar in the upper and lower half of the cane. There 
was a marked difference in the appearance of the juice as it flowed from 
the mill (that from the butts being lighter in color, especially in the ex- 
periments with corn), but after clarification no appreciable difference 
could be observed, nor was there any difference in the product except 
the quantitative one above mentioned, which was, however, a marked 
difference. Also, there was a marked difference in granulation im favor 
of the Juice from the butts. 
It is not improbable that a complete examination of the molasses ob- 
tained from these sugars may show a difference in composition, but at 
the present there has been no time to complete such analysis, and it 
seemed advisable no longer to withheld the report of what has been 
already determined. 
Reference has been made to the very mmperfect mill with which the 
juice was expressed in the above experiment. This will be obvious 
when we consider that both maize and sorghum contain a far greater 
per cent. of water even than we were able to obtain of juice, viz., from 75 
to 85 per cent. of the weight of the plant; but it was thought best to 
continue the experiments even under these unfavorable conditions rather 
than lose a season which might be, at least, valuable in preparing us for 
work in the following one, under more favorable circumstances. 
Some experiments were made with the mill which will illustrate the 
loss which, unquestionably, resulted. A small portion of millet (130 
pounds of stripped stalks) was passed through the mill, and twenty-one 
and one-half pounds of juice ebtained (equal to 168; per cent.). The 
bagasse was again passed through the mill without any adjustment of 
rolls (as that was then impossible), and seven and one-half pounds addi- 
tional juice was obtained (equal to 5,8 per cent.) of the raw stalks. 
Besides, as was to have been anticipated, not only had we lost a large 
percentage of the juice, bat it was altogether the better portion, 7. e., 
containing a much greater percentage of sugar. In this case the first 
portion of juice obtained from the mill had a specific gravity of 1.061, 
while the second portion had a specific gravity of 1.064. Tf now this 
difference in specific gravity of juice was proportional to the sugar con- 
tained in it, as is doubtless the case, the increase of juice obtained by 
the second pressure amounted to an increase of 37 per cent. over that 
obtained by the first pressure; and what was true of the millet operated 
upon was doubtless true of the sorghum and corn of the reported experi- 
ments Nos. 1 to 11 inelusive. 
A similar experiment with a small lot of sorghum showed that 21 per 
cent, additional juice was obtained by again passing the bagasse through 
the mill, 
These facts would seem to indicate a very important modification of 
the mills at present in use, viz., the introduction of an additional roller, 
which should subject the bagasse, as it passes through, to a repeated 
pressure, even if that pressure be no greater than that to which it has 
just been subjected. 
But I am not left to conjecture what results would or might have been 
secured by a perfect mill, from these two small experiments above al- 
luded to, with millet and sorghum; for at the conclusion of experiment 
No. 11 the mill was taken apart, and it was found that the bearings had 
been in some eases entirely worn away, so that no adjustment of pressure 
upon the rollers was possible. Upcem providing new boxes a series of 
four experiments was made with sorghum, the results of which are 
given below. | 
This sorghum was fully ripe, had been cut several days before putting 
