2 
1802. } 
tween France and the Porte, he has at latt 
been fet free, and returned to his native 
country with many valuable difcoveries 
and defiens. He is the firf artift who has 
made refearches-in the celebrated Mount 
Olympus, of which he has taken a plan, 
written a defcription of its fituation, &c. 
Jt is he who took moulds of the beautiful 
triezes of the Temple of Minerva atAthens, 
. for M.CuoiseUL GOUFFIER, on the fpot. 
M. Losanne has prefented tothe Agri- 
cultural Society of Turin the refult of 
his experiments with regard to fabricating 
paper of the bark of the erigerum cana- 
denfe, and the pappus of the carduus nu- 
tans and ferratula avenjis. The fociety 
have expreffed their fenfe of the utility of 
thefe experiments, and have declared, that 
paper of a very excellent quality may be 
_made in this manner, as foon as the foak-' 
- ing of the vegetable matters employed in 
the fabrication can be brought to matu- 
rity. 
-According to a Statiftical Account of 
the Department of the Aube, Paraclete, 
where the unfortunate Abelard found a 
refuge from the perfecution of the Monks, 
prefents nothing but ruins. Among the 
rubbith appears an altar quite defaced, at 
the foot of which is the tomb where he 
was interred along with his Heloifa. Ad- 
joining to it is a ruin, in which Abelard 
is faid to have delivered: his celebrated 
Leétures on Theology. In 1791, the 
tomb of Abelard was transferred from . 
Paraclete to Nogent, and from thence to 
Paris. 
It having been matter of doubt among 
the French chemifts, owing to fome un- 
fuccefsful experiments of Citizen Pacor, 
whether fulphate of foda (Glauber’s falt) 
‘obtained-duting the calcination of mine- 
rals, was ufed in the fabrication of glafs ; 
M. EoLincerR, who mentioned the tir- 
cuniftance, has conceived himfelf bound to 
certify the faé by the following inftance: 
—The glafs-houfe at Fredericttadt, in the 
Voigtland, twelve miles from Freiberg, 
received, during the laft year (1801), 
from the manufaftory at Freiberg, 600 
guintals of fulphate of foda, at the rate of 
twelve francs per quintal. This ‘falt, 
added to about one-tenth of its weight of 
potath, anda {mall quantity of arfenic and 
mManganefe, is immediately put, with the 
filicious matter, into the furnace, and, by 
the application of a ftrong heat a very 
fluid vitreous mafs is obtained. 
In SCHERER’s Chemical Journal, num- 
ber 40; we have an analyfis of fome bitu- 
minous wood, made by R.JamiEsoNn, at 
Freiberg, who conceives that he has difco- 
Literary and Philofophical Intelligence. 
267 
vered 2 new acid, which cannot be cry ftal- 
lized, and which, by evaporation, is feen 
under the form of {mall fhells or fcales, 
of an acidulous tatte. 
folution when combined with lime. It de- 
compoles the nitrate and acetate of lead ; 
it produces a brown precipitate in the 
fulphate of copper; in, the fulphate of 
iron, the colour of the precipitate is of a 
deeper brown. The folution with the 
nitrate of copper takes a beautiful green 
colour, without any precipitation. It de- 
compofes alfo the nitrate and muriate of 
barytes. This acid, mixed with a folu- 
tion of indigo in the fulphurous acid, - 
produces a fine green colour. It refembles 
carbonic acid the moft, and, when poured 
on carbon, it forms a brown and bitter 
matter, which is foluble in water, fpirits 
of wine, and alkaline folutions. It then 
gives out a very penetrating and aroma- 
tic odour. The author thinks that the 
acid is compofed only of carbon and oxy- 
gen. 
Citizen Darcet, Member of the Ly- 
ceum of Arts at Paris, has found that the 
following ingredients.and proportions make 
an excellent white paint, fit for all the pur- 
pofes to which oil-paint is applied, with- 
out any of its inconveniences : 
. Avoirdupoife. 
Milk-curds well-drained 5 oz. 
Slaked lime - =! ‘ob loz, 
“Whiting - - br 5 ae 
Fine powdered charcoal 1 dram. | 
Water (err v2 - 3.02, 
In this Memoir dire&tions are given for 
the preparation of paints of other co- 
lours. ie . 
Y- PRiEsTLEY has replied to Mr. 
Cx .<SHANK’s Defence of his new Syflem 
of Uhemiftry. He is. ftill the zealous ad- 
vocate for the doétrine of phlogifton, and 
calls upon Mr. Cruikfhank to re-confider 
his hypothefis, and extend his examination 
to all the other arguments advanced in fa- 
vour of the phlogiftic fyftem, and againk 
the decompofition of water. / 
In another communication -addreffed to 
Mr. Nicuouson, Dre Paresteey has 
detailed a number of obfervations and ex- 
periments relating to the pile of Volta, 
which feem to him favourable to the by po- 
thefis of two electric fluids—the pofitive 
containing the principle of oxygen, and 
the negative that of phiogifton.. Thefe 
united to water, conftitute the two kinds 
of air, viz. dephlogifticated and inflam- 
mable. He fays they tend likewife to 
confirm a conjecture advanced by himfelf 
many years ago, refpecting the Gmilarity 
of the ¢ledtric matter and phlogifton, and, 
together 
It is difficult of 
