On the Chemistri/ of Silesian Sugar-Beets. 373 
quently pass into tlie juice when tlie rasped roots are placed in 
the presses of the sugar-manufacturer. 
The injurious effects of a heavy dose of dung applied to sugar- 
beets in spring is shown still more strikingly than in the preced- 
ing analysis in the subjoined Table, in which the composition is 
given of two unusually large roots, both raised from true white 
Silesian beet-seed. 
Table XII. — Composition of Two very large White Silesian Beets analysed 
on the 8th December, 1868. 
Specific gravity of juice 
At a temperature of . . 
Moisture 
*Albuminous com]30uncl.s 
Crude fibre (pulp) 
Crystallizable sugar . . 
Pectin, &c. 
Mineral matter (ash) 
*Containing nitrogen 
lllbs. 6ozs. 
.. 6i lbs. 
1-0431 
.. 1-0553 
65° K 
.. 65° F. 
92-58 
88-13 
1-40 
2-16 
1-73 
2-74 
2-22 
4-82 
•47 
•44 
1-60 
1-71 
100-00 
100-00 
•225 
•347 
The larger of the two beets contained only 7 J per cent, of solid 
matter, of which little more than 2 per cent, was sugar. Consider- 
ing the large amount of water in this root, the percentage of both 
albuminous compounds and saline mineral matter is very high. 
The smaller of the two beets was not so watery as the larger 
one, and was richer in sugar. It was, however, a poor root even 
for feeding purposes, and, like all roots of low feeding quality, 
comparatively rich in albuminous matters and ash constituents. 
With a view of studying the influence of different soils and of 
manure on the quality of sugar-beets, Mr. Duncan made some 
experiments last year, which are not without interest. 
One lot was grown in very light sandy soil, another in rather 
heavy clay land without manure, a third was heavily manured 
with farmyard manure, and a fourth was grown in vegetable 
mould or earth out of a trench. 
None of the roots which I received for analysis exceeded 
2 lbs. 5 J ozs. in weight, and one weighed only lA^ ozs. 
The roots grew luxuriant tops, and bulbs neither remarkable 
for weight or good quality. In all probability the soil of all four 
experimental plots was naturally too rich in fertilising matter, 
and the differences in the results were not so striking as they might 
have been had the unmanured root been grown in sterile sand 
and poor clay loam. 
The results of the chemical examination to which I submitted the 
specimens sent by Mr. Duncan are given in the subjoined Table : — 
