General Science, 191 
restored to perfect health. When the injected blood wa^ from an 
animal of a different species, but whose globules had the same 
form, though a different size, the animal was only partially re- 
lieved, and could seldom be kept alive for more than six days, 
the animal heat diminishing with remarkable rapidity. When 
the blood of an animal with spherical globules, is injected into a 
bird, it usually dies under the most violent nervous affections, 
as if under the influence of the most intense poison; and this 
takes place even when only a small quantity of blood has been 
lost. In a great number of cases, cats and rabbits were restored 
for some days by the injection of the blood of cov/s and sheep, 
even when the injection of the blood was not made till tv/elveor even 
twenty-four hours after the blood v/as extracted from the latter. 
The blood was kept in a fluid state in a cool place, either by 
taking away a certain quantity of fibrine, or adding 1000th part 
of caustic soda. When the blood of the sheep was injected in- 
to ducks, they died after rapid and strong convulsions.~5i6/. 
Univers. 
48* Subnitrate (yf Bismuth used in Intermittent Fevers,~-^ 
This medicine has been prescribed in agues for several years by 
Dr Henkesew of Hildesheim. He exhibits it in doses of four 
grains, with a few grains of sugar, every two hours, and consi- 
ders it as a powerful febrifuge and antispasmodic. — Quart. 
Journ, No. 25. p. 233. 
49. Preservation of Grain in Granaries ef Cast-Iron, — In 
order to preserve grain for any length of time, from those in- 
sects which habitually devour it, and which cannot exist in air 
hygrometrically dry, M. Clement suggested the propriety of 
constructing granaries of cast-iron, into which no air should 
enter till it has passed through a body of unslaked lime. He 
proposed also some contrivances for allowing the expanded 
air to escape, and for inspecting the grain when necessary. The 
saving of manual labour in turning over the grain is one of the 
advantages of this plan. Various useful suggestions relative to 
this plan will be found in the Quarterly Journal^ No. xxv. 
p. 164. 
50. Eruption cf Mount Vesuvius, — On the 13th of Februa- 
ry, Mount Vesuvius indicated the approach of an eruption by 
violent detonations, which were renewed on the 16th and 17th. 
