1810.] 
washed with water, an ink similar to 
tliat commonly used for printing, is dis» 
tributed over it by means of printer's 
balls, a sheet of paper “.sposed on a 
frame is laid on it, and this is pressed 
down by means of a copper roller, or cop- 
per press. The sunk, 
differs from that termed i in relief only in 
having the stone much more corrroded 
by the nitric acid. In the flat method less 
nitric acid is used. Itis not to be suppo- 
sed, that the surface is quite plain im this 
way; but the hnes oe very little raised 
so that they can searcely be perceived to 
stand above the ground but by the finger. 
Mr. i. D. Ross, of Princes-street, has 
invented an eye-bath, to clear the eye 
from extraneous matters, and to assist 
the sight; which be makes as an orna- 
ment for a lady’s or br gentiewnan’ s dressing 
rooin. 
‘FRANCE. 
In an account of some recent ex. 
periments of M,. pe Saussurr, it is 
stated that the weight of a cubic 
decimetre [60895 cab: in.] of humid 
orygen gas, the thermometer at 12°5° 
[54°5° F,] and barometer at 0°758 of 
a metre [20°82 in. ] is, according to 
Lavoisier - - 1358380. 20:97 258 
Seguin, Fourcroy, 
and Vauquelin: 1°3523 20°38798 
Biot a et ne BSC 20:9030 
His observation 1°3563 20°9416 
Mean SMa SPs eG Foe 20'°9242 
Some other experiments of M. de Saus- 
sure determined that a thousand parts ef 
bydrogen gas obtained froin the solution 
of zinc purified ty sublimatien, when 
detoaated with 1000 parts of oxigen Pas, 
afforded 3 parts of carbonic acid gas. 
Hydrogen gas obtained from the zinc of 
the shops, which had not been sublimed, 
produced the same guantity of acid as 
the preceding. ace 1000 parts of hydrogen 
pas from the solution of iron produced 
4°5 of acid gas ina similar process. — 
The hydrogen gas from solution of tin in 
muriatic acid aifurded 9 parts of carbonic 
acid.——That from the decomposition of 
waier by Volta’s pile, 3 parts. —That from 
the decotnposition of ammonia, 10 parts. 
RUSSIA. 
At Ochotsk, in Siberia, a dreadful gale 
of wind from the south-east, came on to- 
wards the end of january, and lasted 
two days, ‘Lhe waters of the Ochota, 
which, after passing through the town, 
discharges itself into the sea, were raised 
twelve feet above their ordinary level, and 
- carried over the tops of the houses, The 
tempest coming on at night, between two 
and three hundred of the inhabitants pes 
Literary and Philosophical Intelligence. 
or chalk method © 
155 
rished in their sleep. -A transport bés 
longing to the India Company, which had 
been carried into the river by a tempest 
in 1808, was raised by the waves and 
driven into fe middle of the town, 
M. Tayscuer the botanist, who is 
employed by Count Alexei Rasumowski, 
has arrived at Sarepta, on the Wolva, 
witha rich collection of rare and unknowd 
plants, collected in the steppes or desert 
plains, northward of the Caspiai Sea. 
‘This traveller has also visited the islands 
in that sea, where he has found the In- 
dian lotus. The governor of Casan 
gave M, Tauscher an eseort of 100 Cos- 
sacks, with one piece of cannon, which 
enabled him to disperse a troop of 660 
Kergises, assembled with the intention of 
pillaging him. This is the first time that 
a botanist ever travelled with cannon. 
PRUSSIA. 
Last summer ai experiment of a new 
kind was tried at Philipsthal, in East 
Prussia. This was, to split a rock by 
means of lightning. An iron red, similar 
to a conductor, was fixed in the rock, 
and on the occurrence of tlre first thun- 
der storim the lightning was conducted 
down the rod, and. split the rock inte 
several pieces without displacing it. - 
HUNGARY. 
From the report of three professors of 
Pest, sent to examine into the cause of 
the earthquake i in this country, in. Janu- 
ary last, it appears that the centre from 
which tne shocks were communicated fs 
in the environs of the mountain of Czoka. 
At their departure, the shocks, though 
feeble, were still perceptible. “The num- 
ber distinctly felt between the 44th Jae 
nuary and 14th February, was 1000, 
rN De 
In prosecuting the researches at Pome 
peii, there nas been discovered a larse 
edifice adorned with columns, which 
appears to have beer one of the- chief 
public buildings of the tawn. 
In consequence of a particular report 
made by the Committee of Arts, at 
Rome, orders have been issued for the 
repairing, with all possible dispatch, of the 
{wo very elegant temples of Vesta and 
Fortuna Virilis, great part of which yet 
exist between the great sewer and the 
ancient bridge of the senate. The 
former, though the precise period of its 
construction is unknown, appears howe 
ever to have veen built about the time 
of Augustus. This conjecture is founded 
on the extreme elegance of its form, the 
variety of its ornaments, and the nature 
of the marbles employed in its embellish 
ment. The just lamentations of artists, 
on beholding this monument disfigured by 
Gay Me 
