S6 Sketch of the latest Improvements [Jan. 



20. Scapolite.— A specimen of scapolite, from Sudermanland, in 

 Sweden, analysed by Berzelius, was composed of 



Silica 61-50 



Alumina 25*75 



Lime 3-00 , 



Magnesia 0*75 



Oxide of manganese 1*50 



iron 1 "50 



Water 5-00 



99-00 



21. Cerite. — This mineral, according to the last analysis of 

 Hisinger, is composed of 



Oxide of cerium 68-59 



Silica 18-00 



Lime 1-25 



Oxide of iron 2-00 



Water and carbonic acid .... 9-60 



99-44. 



22. Spodmnene. — Spodumene, from Uton, according to the 

 same analyst, is composed of 



Silica 63-40 67*50 



Alumina 29-40 



Oxide of iron 45-00 



Lime 0-75 



Volatile matter 0-53 



l(Oss 2-92 



27*00 

 3*00 

 0*63 

 0*53 

 1*34 



100-00 100-00 



The last of these analyses is by Berzelius. 



23. I shall now subjoin a table of a number of Swedish minerals 

 analysed by Hisinger : — 



'Silica .. 61-60 



Alumina 20-61 



Lime 1-60 



Oxide of manganese 0-50 



Lepidolite from Uton .... < 



iron, a trace. 



Potash 9-16 



Volatile matter 1-86 



Loss 4-67 



100-00 



