1814.] made duihig the Year IS 13. 53 



6. An aerolite, or meteoric stone, which fell at Erxleben, in 

 Germany, on the 15th of April, 1812, was analysed by Stromeyer, 

 and found to contain the following constituents : — 



Iron 24-415 



Nickel 1-579 



Sulphur 2-952 



Silica 36-320 



Magnesia 23-5S4 



Alumina 1-604 



Lime 1-922 



Oxide of iron 5-574 



Oxide of manganese 705 



Oxide of chromium 0-246 



Soda 0*741 



Loss 0-358 



100-000 



A meteorolite, which fell, in 1807, at Weston, in North Ame- 

 rica, according to the analysis of Mr. Warden, the American 

 Consul General in Paris, was composed as follows : — 



Silica 41 



Sulphur 2^ 



Chromic acid 2^ 



Alumina , 1 



Lime 3 



Magnesia 16 



Oxide of iron 30 



Oxide of manganese li 



Loss 3 



100 



7. Mr. Smithson has analysed a saline substance from Mount 

 Vesuvius, and found it composed of the following constituents : — ■ 



Sulphate of potash 71*4 



Sulphate of soda 18-6 



Muriate of soda 4-6 



Muriate of ammonia "j 



Muriate of copper > 5-4 



Muriate of iron J 



100-0 



6. Chemlilry of Fegetalle Suhslanc.es. 



No very important additions have been made to our knowledge 

 of vegetable chemistry during the year, unless the detection of 

 some new vfgetable bodies be viewed in that light. 



1. Mr. Smithson and myself have ascertained the properties of 



