96 Sugar from Beet-Roots. 
guifhed members, fince the time of its foundation, may be 
fake Voltaire, ele&ted in 1764; Leffing, and Lalande the 
celebrated French aftronomer. It was eftablifhed in 1763 
according to a plan of the learned Schopflin, and divided 
imto two clafles, the Hittorical and Phyfical; the latter of 
whieh, in the year 1780, was fubdivided into the Phyfical 
(properly fo called) and Meteorological. The collection of 
the papers of the Academy have been publithed in eleven 
volumes quarto, under the title of 4&2 Academie Theodoro- 
Palatine. The Meteorological Obfervations are from 178% 
to 1792, and make twelve volumes quarto, with the title of 
Ephemerides Societatis Meteorologice Palatine. 
SUGAR FROM BEET-ROOTS, 
Profeflor Kfaproth has publifhed the following teftimony 
in regard to fegar procur ed from best-roots; — 
i Having, i in confequence of a requeft by Mr, Achard, 
that I would examine his procefs for making fugar from 
beet-roots, and communicate to him the refult, convinced 
myfelf, by repeated experiments; of the abundance of fae- 
charine matter in thefe roots, that I might afeertain the 
proportion with more accuracy, I made the following expe- 
riment :—Twenty-five freth roots, which weighed 32; poundg _ 
after they had been feraped and the tops cut off, were put 
inte a perforated tin veflel, and the juice was expreffed by a 
proper apparatus. The juice obtained weighed 19} pounds, 
‘The fqueezed refiduum was put into a tin kettle with boiling 
water, and, after ftanding an hour, was preffed alfo. This 
extract was added to the juice; both were boiled to a fyrap, 
and ftvained through a woollen cloth; after which the fyrup 
teas put into a parcelain eapfule, and evaporated gradually 
over a flow fire to complete drynefs. The raw fugar ob- 
ae and which T put mto a fealed glafs, amounted te twa 
pounds twélve ounces. 
“ That 25 roots, or 323% pounds of beets, produced twa 
pounds twelye ounces of fugar, is hereby certified, as witnefs 
wy hand, Martin Henry Kiaprotrs,” 
Berlin, sxth January 1799°” 
A letter 
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