58 C. Wolf on the equivalent of Cerium. 
The een 46187 has been used for these calculatio: 
The salt, which gave these results was crystallized in § 
crystals, Tae | in one direction, the gerystallogeen™ ay 
scription of which I shall subsequen tly gi 
Let us compare this equivalent with the posal which we 
previously obtained by other observers 
Beringer* made in Wéhler’s Iatoratoty. four doterminatiil 
of the equivalent of cerium. His salts were all prepared from 
the residue, remaining after the extraction of the mixe 
oxyds by dilute nitric acid. They were all rose-colored. 
From the pale rose-colored cerous sulphate > ae earls fi ° 
From the like colored cerous chlorid, S : 7 sea 
By the conversion of the ae into ‘oxyd, 576°69 46°127 
From the cerous format 576°00 46°080 
‘“Mean,.. 576°73 46'1. 
Hermann} found the number 575-00=46-00 by an anal 
of the cerous sulphate prepared from the basic sulphate. . 
ne case likewise the mixed oxyds were first extracted by ni 
mixed oxyds, remaining after having been extracted by 2 
: ey The residue was dissolved in sulphuric acid. na 
sta tion. The solution of these c stals in wat 
mp red; in boiling water, containing s iceerie acid, p! 
aU e basic ceric sulphate, from which the sutival cero 
It was obtained, which gave : 
«5763 a 5 1 | 
= by 
. the ihe mame Oa ‘90= 073. the analysis of the cerous 0X 
oe inger, Annalen der dee Dicks hacen. 
gt at Hermann, — far Pract, st Angpi mre ge 
f Marignac, A sae de Chimie et Phys. , I, xxv, 148; Ann. der Chem. ¥ 
en der Chem. & Pharm, ev, 1858, 
fom Poggendorf’s $s Ann, evil, 1859. 
