134 Scientific Intelligence. 
they toa great extent, if not entirely, being of a fixed character when 
exposed to heat, were to be found in 
fo 
a 
Bauzite, so called from the name of the locality wh 
France. It contains— 
Titanium, - - 
Sesquioxyd of iron, 
Alumina, - . 
Carbonate of lime, 
Water," is 
F228 ek Ft 
P.O CP eh 
ERE a ae GAY Soe | 
ert Saou eee ae 
autem Tee ae ee 
Ee SM oe See, ee 
ee Sake 8 
The bauxite is ground and mixed with the ordinary alkali of com 
merce, heated in a furnace. The metal is so extensively used in the als 
it : 
be — — that metal, with the additional ay 202, 
property of being nearly as hard SEE A x, No. 2 
Oe, ith 1808. te te Chemical: Nome HE 
8. Processes of Silver and Gold Extraction ; by Guivo Kusstsh 
8vo. 327, with 7 lithographic plates. (Carlton) San Francisco, 18' 
From the title page we learn that this work treats of the processes 
