res MS 1 Chyle of a dog. _ Chyle of a horse. 
aise 2 AGgrbenpied sc. - eco $52 «er od KES Sore 
Oxygen, - -9 = = =) 26.9 20% a= 26.8. ~58 
—— emcee  -m ile S ee yin SAG 
Azote, -- - 11.0: << = shits 
“The horse nein been fed on siesitiihens and the dog on various 
anes: the result shows that the food had little or no influence on 
ane composition of this animalized product. 
found, however, that the excrements of the dog were more 
of an animalized character than those of the horse. a dried 
athe - same nies as the chyle, the results were 
Excrements of the dog. | Excrements of silioen. ’ 
41.9 - 38.6 
eee Oxygen, - - - - - 28. © eo =) 29 
oe eee o 69. «we = Be 
3 zote, - 42 - - - - 0.8 
a aad aie siete 20... -32.2. a 
After stating the nature and offices of the blood, the authors remark 
that i in composition, they found the blood of sheep, rabbits, horses, 
oxen, _ so nearly alike that the differences may be regarded only 
as errors of experiment. They then performed with the precau- 
tions before stated, the analyses of arterial and of venous blood. — 
_ Arterial and limpid blood reduced to a fine, Black venous blood it 
: alear, red powder. a brown-red powder. 
Carbon, - - - 580.2 - - - - = = 55.7% 
het cas 3. oe ee ee 
Hydrogen,” - - 6.6 - - - -.- = 6.4 
aaa gi a, =, D003. 5 m5 ge eet ONE 
~ It thus appears to be proved, for the first time, by elementary anal- 
_yses, what had been admitted by general hypotheses, that the pro- 
portion of carbon is greater in venous than in arterial blood. But the 
authors state that the change which venous blood undergoes in color 
by being gently agitated in contact with air, is not owing to its con- 
version into arterial blood. It is always brownish, less limpid, and 
when dried, it has the same deep red-brown tinge as dry venous 
= te and furnishes by analysis the same results. ‘The conclusion, 
yre, is that the vital action, as well as oxygen, is cones to 
its transformation i into arterial blood. aa 
ia XXIIIL—No, 2. 49 
eee 
