Analysis of a new Variety of Ore of Antimony. 299 
Braconnot, or fibrous part of the mushroom. 8. The acetate 
of potash. 
It is extremely remarkable that the mushroom, whose struc- 
ture is so simple, so homogeneous and short-lived, and which 
seems to avoid the light, should form so great a number of 
different principles, and in such considerable quantity. 
Agaricus bulbosus. It contains: 1. The animal matter in- 
soluble in alcohol, similar in every respect to that of the com- 
mon mushroom. 2. The animal matter which is soluble in al- 
cohol and water, which I take to be osmazome. 3. A fatty 
substance of a yellow colour and an acrid taste. 4. An acid 
salt which is not a phosphate, for it does not disturb lime 
water. The husks of this mushroom furnished an acid product 
by distillation. 
Agaricus theogalus. It contains: 1. The crystalline sac- 
charine matter. 2. The greasy and bitter matter. 3. The 
animal matter insoluble in alcohol. 4. Osmazome. 5. An acid 
vegetable salt. 
Agaricus muscarius. It contains: 1. The two animal mat- 
ters above mentioned. 2. The fatty matter. 3, Muriate, phos- 
phate, and sulphate of potash. 
The parenchyma of the two latter agarici gave also an 
acid product upon distillation. | 
The above three kinds of mushrooms probably contain 
other principles ; but the small quantity which I possessed did 
not afford me an opportunity of entering upon a detailed exa- 
mination. I shall take up the subject on a future occasion: 
in the meantime, if they contain any deleterious substance, 
it must be looked for, in my opinion, in the fatty matter already 
described. 
LXIV. Analysis of a new Variety of Ore of Antimony. 
By M. Kiarrotu*. 
Tu subject of this analysis is a new mineral, which has 
heen recently found in the county of Sain, at Treusbourg. My 
preliminary experiments gave me as its chief constituent 
parts nickel and antimony. The novelty of this union induced 
me to undertake a rigorous analysis. 
Its colour is gray inclining to iron black: it is compact, of 
a middling metallic lustre, lamellous fracture, and indeterminate 
* From Mugazin der Gesellschaft Naturforschender-Freunde. Berlin, 
Jan. 1813. 
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