1817.} Scientific Intellizence. 247 
eye ran out. ‘The leanness continually increased, the animal iost 
its strength, and died on the 32d day. The dead body was found 
destitute of fat, and the muscles deprived of five-sixths of their 
usual volume. The urine was alkaline, and destitute of uric acid, 
like that of herbivorous animals. The bile also contained much 
picromel, like that of oxen. A second and a third dog, fed like- 
wise upon sugar and water, shared a similar fate. 
Two dogs fed upon olive oil and water died on the 36th day, with 
precisely the same phenomena, except the ulceration in the cornea, 
which did not take place. : 
Several dogs were fed with gum and water. Their fate was pre- 
cisely the same. 
A dog fed on butter died on the 36th day, with precisely the same 
phenomena; though on the 34th flesh was given him, and he was 
allowed to eat of it at pleasure. In him the ulceration in the cornea 
showed itself. 
From these curious experiments of M. Magendie, it is obvious 
that none of these articles are capable of nourishing dogs. Hence 
we may infer, with the greatest probability, that they are incapable 
of nourishing man, (Ann. de Chim. et Phys. iii. 66.) 
VI.. Temperature of the Sea. 
1. At the surface of the ocean, at a distance from land, the tem- 
perature of the water at noon is colder than that of the air. Its 
temperature at midnight is always higher than that of the air; so 
that twice every 24 hours the temperature of the sea and that of the 
air are the same. 
2. The mean temperature of the surface of the sea at a distance 
from land is higher than that of the air. 
3. The temperature of .the sea, supposing no current, diminishes 
in proportion to its depth. (Peron, Ann. de Chim. et Phys, iii. 126.) 
VIL. Sulphate of Barytes in Surrey. 
Some years ago many beautiful specimens of sulphate of barytes 
were found in the fuller’s earth at Nutfield, in Surrey. They may 
be still seen, I presume, in Mr. Sowerby’s museum ; and are very 
remarkable for the brilliancy of their yellow colour. A specimen 
from Mr. Sowerby’s collection has been recently analysed by Pro- 
ad Stromeyer, of Gottingen, who found its composition as 
ollows :— 
POI VUES cee ssencececeysescneres GOBOT 
RPPOPIIMLG TAGES o5u)','s'e'e's'o w'n'e'e'a's pa’ 33°874 
Hydrate of iron .............. ees ro) 
Colouring matter and water ...... »» 0°053 
99°785 
Loss eT POP er erases erererseeerer 0°215 
