Foreign Literature and Science. —-—«*169 
7. On the Iron in the Cruor or red part of the Blood.— 
Bnechar of nine from as senate “ee Pee Rese: con- 
red color. of the c f the blood is. ow- 
ere ee iron, seit this opinion ic fe controverted by 
Brande, Vauquelin and others.. He found, when the cruor 
is deprived of its iron, that it becomes colourless. The iron 
is separated from the cruor by means of chlorine, a method 
much superior to those at present in use,—d, Phil. Jour. 
8. Saints of Paper from Marine Plants.—It is 
said, that tried with success in Holland, to man- 
ufacture fark ere aati algae. We have not. seen this pa- 
per, and are unable to say any thing, with certainty u 
the subject, but we entertain no doubts, regarding the suc- 
cess of such an undertaking, provided it were conducted b 
proper hands. The tenacious texture, and the nature of 
these plants, seems to render them well adapted for this pur- 
pose.— Ed. Phil. Jour. 
9. nes ure of a —— which has the propert vof 
r from ay- 
ing dried a certain cuantiy of pu pumice stone among live 
coals, and reduced it to pow wder, a it with . linseed oil 
thin enough to o be laid u upon paper wit a pencil. © "To give 
this layer, a yellow, black, or aes ee color, the mass 
is mixed, before applying it to the paper, with a little ochre, 
English red, or lamp black. Care must be taken to lay the 
substance on as oasalld as possible, and to dry it in the air. 
When the first coat thus applied to the paper is dry, anoth- 
er is to be Jaid on in like manner. Those who manufacture 
it for sale, pass the paper thus prepared under a cylinder, to 
render it smooth. It is further to be observed, that the mass 
must and that it must be stirred about before ap- 
plying it to the paper. —Ea. Phil. Jour. 
10. On the Poisoning: of Plants.—Plants are liable (as 
Carraderi has seen) to lose their power of 
se action of distilled oleander water; thus this water, or 
n better, the volatile oil of oleanden, extinguishes a 
ree power of contraction of the capsule of momoidaca = 
terium, and of balsamina ian 
Vo. 22 
. XV.—No. 1. 
