NATURE AND ANALYSIS OF THE POISONS. 119 
Healthy human venous blood yields : 
Coagulumy 6 ee 2g a ew 4 a 180 
Serum, . 2... 1 1. 1 wy. 87.0=100.0 
; Fibrin, Pee ae ay oe. ey mar or “OBO. 
Conguium, | { Hematosin,. . . . . . . 0.20 13.00 ! 
Globules, \ Aibuminous matter,. . . . 12,50 
[anne ST Re ge Sa gy ee tae “gp eg Gp LE, “ap SGHOO 
AIDOMEN;:. Goa) sow a Ee we ose 00 
Borat) Fatty sifalinden arr a a - . 0.06 
Various salts with errand — Poo we a MOPS 
100.00 
Heematosin has not yet been extracted in a state of purity, 
and has not been obtained crystallized. It forms after sepa- 
ration from the other elements of the blood a blackish-red 
amorphous mass, tasteless, inodorous, and insoluble, when cold, 
in alcohol, water, or ether. 
It dissolves readily in alcoholic solutions of potassa, soda, 
and ammonia, which it colors intensely red. It contains, 
more or less, 10 per cent. of sesquioxide of iron, which ap- 
pears essential to the existence of the globules. 
NATURE AND ANALYSIS OF THE POISONS. 
Mogquin-Tandon* says that the poison of a Crotalus is of a 
greenish hue, but I have often extracted it from the South 
American varieties from a greenish to a yellowish tinge; it is 
neither acid} nor alkaline; is precipitated in water, in which it 
preserves its viscidity for some time, but ultimately mixes with 
it. When dried on a plate of glass it looks like a layer of 
gum full of cracks. It is insoluble in sulphuric and hydro- 
* Medical Zodlogy, by Moquin-Tandon. 
+ Dr. Mitchell’s tests prove the Crotalus venom invariably acid. 
