126 Scientific Intelligence. 
In this mineral si carbonic acid is combined with the lime, magnesia 
taine 
2 tia, fas & , 3 : 42°40 
Magnesia, - - - $120 ; 
Wate sa iron, - - - 13°90 - a 
Waiter - - - 12°50 s # { 
100-00 : 
The Roxbury, Vermont, serpentine, analyzed in the same manner, 
‘ielded : 
scans - - - - 42°60 
esia, - 85°50 
Prasyd of iron m and ox. chromium, - 8:30 
Carbonate of li - 0°60 
‘Water, - - - 13°00 
Chemical ae of serpentine from Lynnfield, ine —a «ight green 
and rather soft variety. 
Silica, - - *% - 37°5 
Magnesia, - - - - 41:0 
Protoxyd of iron, - - - 2°5 
cag of _— - - - 4:0 
Wate - - - 150. 
This variety of serpentine is capable of being docoéiiongl by boiling 
ena acid, and was at one time used in the manufacture of Y alphate 
of magne 
It is too ve to be used for ornamental marble, but it withstands heat 
perfectly ‘ie it has been gradually baked, so as to expel its water of 
compositio 
It dries nearer to the precious or noble serpentine in com’ 
to that of the serpentines of verd antique marble, which are ti de 
than noble serpentine, 
Ill. BOTANY AND ZOOLOGY. 
i: toh os Prodromus, vol. x 
longer wali for the large fam noma of Lauri 
Professor DeVriese. Only we beg, that when the coeluing part 0 
por cee thirteen is given us, it may be paged cv bet with the ee 
