500 Scientific Intelligence. 
the erystals but decomposes the coloring matter, removing the 
iron, and totes ets rphyrin having a distinct absorption 
spec ctrum. The r therefore concludes that the blood erys- 
tals are really sro of globulin Se mixed with the 
coloring matter, a view y originally he aay y Reichert in 1847,— 
Ber. Berl. Chem. Ges. i , Apr 
3. On the Miangsion: pe of Colorless Liquids. —Russeut 
and Lapraik have repeated and extended their observations of 
last summer on the abeervaad bands i in the spectra of liquids or- 
inarily considered colorless. The spectra were in all cases ob- 
served with the eye, the spectroscope used being made by Desaga 
and having a single prism of heavy glass. The sources of light 
were a large Argand gas burner and the lime cylinder. Before 
reaching the slit, the light traversed a column of the liquid from 
2 to 8 feet long. A plate is given showing the bands in the spec- 
tra of thirty-four liquids. Water, in a tube 6 feet in length gives 
a distinct absorption band between the 600 and 610 divisions of 
the scale, these divisions corresponding to millionths of a milli- 
meter. It is darker on the more refrangible side and ends sharply, 
fading off ediatty on the other side. e general absorption 
extends to about 665 in the red, and there appears to be a second 
band at 705-723. These bands are unaffected by temperature 
and also by salts in solution, Ordinary alcohol (in which absorp- 
eens gives a band coincident with that of the arte ethers. 
The existence of the same band in all these amyl mee ounds shows 
703 to 7 14, both eiskably prth and dark. Methyl-benzene 
(toluene) shows the same bands but the former has become fainter 
while the latter is as dark as before. Xylene shows the same pro- 
cess continued farther. Mono- and di-chlorbenzene, the latter dis- 
solved in ether, er the same bands, but the 606 band is fainter 
than in benzene. Napthalene no A, at three bands, two sagt 
ing exactly with Pate enzene bands and the third with the e gen 
eral absorption of this body. Two "feet of naphthalene priduced 
as much absorption as six or eight times as much benzene ; and 
benzene in its turn is more powerful as an absorber than either tol- 
uene or xylene. Phenol gives two bands, one agreeing nearly 
aqueous solution shows five bands; the darkest is from 649 to 654; 
