Steam Engines.—Fulminating Platina.—Leciures. 397 
= 
STEAM ENGINES IN CORNWALL. 
The average work of thirty-one steam-engines in the month 
of April, according to Messrs. Leans’ Report, was 20,998,138 
pounds lifted one foot high with each bushel of coals. Woolf’s 
engine at Wheal Var lifted 43,998,178 pounds, and his engine 
at Wheal Abraham 50,908,433 pounds with each bushel. _ 
FULMINATING PLATINA. 
Mr. Davy, professor of chemistry to the Cork Institution,’ has 
lately discovered a new combination of platina, which belongs. 
to the class of fulminating metallic compounds, and has some 
curious properties. It explodes by a moderate degree of heat ; 
the explosion is accompanied by a flash of light; and the pro- 
ducts are gases and metallic platina. Inu ammoniacal gas, at 
the common temperature of the atmosphere, this substance be- 
comes ignited ; and in liquid ammonia, gas is copiously evolved 
from it. When it is touched with alcohol, a slight crackling 
noise is produced, and it burns with ared flame Mr. Davy is 
engaged in the examination of this compound, and will shortiy 
make known the results of his investigation. 
LECTURE. 
_ Theatre of Anatomy.—Mr. Taunton, F.A.8. Member of the 
Royal College of Surgeons of London, Surgeon to the City and , 
Finsbury Dispensaries, City of London Truss Society, &c., com- 
menced his Lectures on Anatomy, Physiology, Pathology, and 
Surgery, on Saturday May 18, to be continued every Tuesday, 
hursday, and Saturday, at Eight o’Clock in the Evening pre~ 
cisely. 
_ Particulars may be had on applying to Mr. ‘Taunton, 87, Hata 
ton Garden. 
—<gh 
Meteorological Observations made in Scotland, principally at 
Edinburgh, from the \4th to the 25th of April 1816. 
_ April 14.—Fine cold day, with occasional showers of small 
snow and sleet. Windfrom NW. The sea-gulls flew low about 
ocks below West Leith. Night bright and clear. 
_ April 15.—Clouded, and not so cold as yesterday, with more 
vain. Dark night. 
April 16,—Clouded early; fair day, with wanecloud, par- 
a) taking 
