Studies for Students 



THE CONSTITUENTS OF METEORITES. I 



ELEMENTS 



The following elements have by good authorities been 

 reported as detected in meteorites by means of chemical or 

 spectroscopic examination : 



Aluminum Helium Potassium 



Antimony Hydrogen Selenium 



Argon Iodine Silicon 



Arsenic Iron Strontium 



Barium Lead Sodium 



Bismuth Lithium Sulphur 



Calcium Magnesium Thallium 



Carbon Manganese Tin 



Cerium Molybdenum Titanium 



Chlorine Nickel Tungsten 



Chromium Nitrogen Uranium 



Cobalt Oxygen Vanadium 



Copper Palladium Zinc 



Didymium Phosphorus 



Many of these, however, occur only as traces, while others 

 may possibly have been introduced by terrestrial agencies. The 

 following list will be therefore more satisfactory as giving the 

 primary and fundamental elements known to enter into the com- 

 position of meteorites : 



Aluminum Hydrogen Phosphorus 



Calcium Iron Potassium 



Carbon Magnesium Silicon 



Chlorine Manganese Sodium 



Chromium Nickel Sulphur 



Cobalt Nitrogen 



Copper Oxygen 



It will be of interest to compare the more important of these in 



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