alors 
. 
au bain-marie, on. 
se forme de précipité. 
J, M. Ordway on Sesquisalis. 205 
obtient le sel a ’etat gommeux. II se dissout 
lentement, mai “ 
"pe dant longtemps, ajouter de l’alcali, sans qu'il 
e are 
Homide mais qui, apres avoir été lavée 4 eau bouillante ou 
séchée, n’est plus dissoute que trés lentement, méme par les acides 
concen este . 
& 
to t 
Wake en 
e 
trés 
ble in weak nitric or chlorhydric acid; but not in formic, acetic, 
uorhydric acid. The lilac tint of the hydrate 1s suggestive 
didymium, but there could be none present, for, by exposure 
pitate absorbed carbonic acid and 
its color; and then, too, the basic salts made from it, whether 
soll 
ble or insoluble, were yellow. The normal salts are mostly 
orange, and, like the salts of iron, are deeper colored when 
heated. 
It takes up enough carbonate of baryta to abstract five- 
Sixths of the acid, and remains transparent. More of the carbon- 
ate causes a complete precipitatio 
Ceric oxyd is, very likely, cap 
te, 
hich it assumes such a condition 
but the circumstances under which i : : 
_ have not been determined. A decided trace of sulphuric acid 
ip . . 
tivity. 
£ Thon, gh bee from its resemblance to alumina, 
n reckoned among the sesquioxyds, its claims to such 2 
have latterly been called in question ; — a recent 
