434 
"The Rev.Josers Barrert, of Ormf- 
kirk, is preparing tor the prefs, a new 
Syftem of Modern Geography for the Ule 
of Schools. 
The fecond volume will fpeedily be 
publifhed of «* The Advifer; or, Literary 
and Scientific Tribunal ;’’ being a collec- 
tion of Effays, containing oblervations on 
the fubjeéts which mof# intereft the human 
race, and which are heft calculated to pro- 
mote their: welfare. The work is under- 
taken by the joint concurrence of a fociety 
of literary men, who defciibe themfelves 
as wifhing to promote the circulation of 
this great and important truth—* that 
the vii tus and apes nefs of mankind areal. 
ways propertioned | to the quantity of dif- 
fufed Caraaiad: . 
‘Mr. J. Matron will .ublith, eayly in 
January, a Coile&tion of Defigns. for 
ViLLAs, accompanied with letter-prefs 
defcriptions, and various thoughts on- the 
fubject of building, particular'y a Diifer- 
tation on Lighting of Apartments. This 
work wil! be in the fame fize as his work 
on britifh Coitage-Architeciure, and may 
be confidered an extenfion of the fame fub. 
ject, in more elegant rural itructures. 
The Ufe of the Definitive Article in 
the Greek Text of the New Te?ament, 
will fhortly be farther inveftigated, in fix 
other letters, addrefl)ed to GRANVILLE 
SHARP, Efq. which arein the prefs. 
A new edition, intended as a Vade-me- 
cum, of the late Dr. Law’s (Bilhop of 
Carlifle) Two Difcourfes—on the Life and 
Charaéter of Chrift, and on the Benefit 
procured by nis Death, in regard to our 
Mortality, is in the prefs. This impref- 
fion is taken from the laft edition, printed, 
in his Lordfhip’s life time, at Carlifle, 
17384. 
Mr. CUTHBERTSON gives the follow- 
ing account of an experiment by which 
the two kinds of electricity are aiftin- 
guifhed, or the direction of the fluid is 
afcertained:—Infulate two wires, furnifh- 
_ed- at each end with a ball, three-fourths 
of an inch in diameter ; conneét one with 
the pofitive, and the other with the nega- 
tive, condu€tor of a machine; the balls 
Should be four inches afunder, and between 
them, at equal diflances frem each place, 
a lighted candle, with the center of its 
flame nearly on a level with the centers of 
the balls: if the machine be put into mo- 
tion, the flame will waver very much, and 
feem to incline rather more to the negative 
ball, than to the pofitive one 5 after about 
fifty revolutions, ,the negative ball will 
grow warm, and the pofitive ball remain 
@old; if the revolution be continued tc 
Literary and Philofopbical Intelligences 
[ Tieas t; 
about 202, the negative ball will be too 
hot for the hand to touch, while the other 
remains as cold as at the beginning. 
Mr. EzexieL WaLkeEr has difcover- 
ed a cheap method of producing light, 
which he thinks pofleffes advantages much’ 
{uperior to the common modes of illumi- 
nation, This light generates no fmoke, 
nor does it require the aid of fnuffers. 
Mr.THOMas SsLMOn, of Canterbury, 
has given a defcristion of a fimple me- 
thod for clearing apartments from noxious 
air. He carries an air-tight metallic 
tube from the. upper part of the place in 
which the noxious air is generated, as 
common-fhores, cefs-pools, privies, &c. 
with an-:afcent towards the kitchen or 
other chimney, whofe fire is moft fre- 
quently kept, and joined to the lower_part 
of the back of the grate; a pipe is alfo 
fixed at the upper part of the grate, which 
is. made to condu& the neareft way out of | 
the houle. By this method, Mr. Salmon 
fays, holds of thips may be ventilated 
without labour or expence, by paffing the 
metal pipe through the cabin or other 
fire, and that deftruétion of grain prevent- 
ed that was experienced during the late 
{carcity. 
Mr. RawsTHORNE, the architect, who 
refides near York, has lately invented a 
new kind of bricks, dove-tailed into each 
other, for conftruéting arches for the ciel- 
ing of rooms, &c. in lien of timber. This 
method requires very little,if any,additional 
thicknefs of walls or abuttments, and it 
may be conftruéted fo as to be perfeétly 
fecure to any f{pan, and is likewile a fecu- 
rity againft fire. The expence of finifh- 
ing buildings by it is little more than that 
of timber. 
It is faid, that a method has been dif 
covered of afcertaining the longitude at 
fea, by means of a magnetic ball floating 
ina bafin of quickfilver. Befides its po- 
jarity, the magnet 1s on this theory fup- 
poied to have a propenfity to retaimits re- 
lative pofition on the earth; that is ta 
fay, it turns upon an axis, like the earth, 
one part always pointing to the polar ftar, 
fo that in failing round the world, the 
little ball would make a complete revolu- 
tion on its axis. 
From fome late experiments made by 
Mr. FRANCILLON, it appears, that a 
mixture, conlifting of fix parts of gold, 
and one of platina, gives a metal of a 
beautiful. colour, great malleability, and 
capable of sig bei: an exceedingly fine 
polifh, more unalterable than gold, when 
expolfed to the aétion of ful phurifed hy- 
drogen, and other agents. 
Mr, 
