Fusion-Structures in Meteorites. 



301 



Alumina, 



- 1.175 



Alumma, 



- 0.90 



Oxide of Chrome, 



0:225 



Chrome Iron, 



0.49 



Peroxide of Irou, - 



- 18.324 



Peroxide of Iron, - 



- 830 



Protoxide of Iron, 



- 17.924 



Protoxide of Iron, 



21.60 



Oxide of Nickel, - 



- 2.450 



Oxides of Nickel and Cobalt, 



- 2.26 



Oxide of Cobalt, 



0.085 



Oxide of Manganese, - 



0.36 



Oxide of Manganese, - 



- 1.815 



Magnesia, 



- 17.00 



Magnesia, - 



8.163 



Lime, ----- 



1.85 



Lime, . . . 



- 2.183 



Soda, - - - - 



- 2.26 



Soda, - - - - 



1.244 



Potassa, - - - - 



0.19 



Potassa, 



- 0.307 















89.19 





99.434 









Cloez groups his results thus :- 



Pisani calculates liis as follows :- 



Magnetic Oxide of Iron, 



20.627 Magnetic Oxide of Iron, 



12.03 



Magnetic Sulphide of Iron, - 7.974 Nickeliferous sulphide of iron, 16.97 



Sulphide of Nickel, 

 Silicates, 

 Humus, 

 Combined Water, 



3.169 Chrome Irou, 



45.127 Silicates, _ - - - 



6.410 Water and Organic Matter, 



7.812 



91.119 



0.49 

 55.60 

 14.91 



100.00 



The analysis is very complete, and v>'ill again be referred to. 



Among the numerous elements determined in meteorites, is 

 carbon. The existence of this substance in meteorites has 

 been thoroughly established by different analysts, and though 

 it is by no means a constituent of the greater number of these 

 bodies, yet its occurrence is of sufficient frequency to have given 

 rise to the class of "carbonaceous meteorites." 



The presence of carbon in these meteorites is now to claim 

 attention, bringing into consideration the second item, perti- 

 nent to the query under discussion, namely : are there any data 

 which would justify the inference that the agency of life was 

 ever active on those worlds, of which meteorites are the 

 fragments ? 



The first meteorite in which carbon was discovered, seems to 

 be the one which fell at Alais, Dejoartement du Gard, France, 

 on the 15th of March, 180G. 



