Op 
Manufacture of Aluminium. 111 
The perfume is almost indefinitely diffusible in the air, sh 
presence by its odor, without any sensible loss of weight. It is 
Boe gis 9 Abia se 
diffusible in distilled water, when some drops of an alcoholic solution are 
the methods been contrived by H. St. Claire Deville and Morin, 
They differ little in general from those originally employed. It is neces- 
Sary always to decompose the chlorid inium, and decompose it 
is chlorid is now made by the direct use of kaolin or even of clay 
—that of Dreux for example, But this is not all. The chlorid was 
difficult to manage in a large way because, after having been formed in 
+o collect it in chambers and detach it mechanically from the surfaces it 
Coated. There was,«first, a loss of the chlorid, the condensation being 
mcomplete ; i the iratio 
the vapors; third, an enhancement of cost from the interruptions in 
© Operations. : 
The improvement consists in submitting to a current of chlorine—not 
um; this 
tinium and sodium which is volatile and liquifiable, running like water 
and becoming solid with cold. The preparation goes on ; rs 
Proceeding with simplicity and regularity and exacting no other care | 
