478 



APPENDIX. 



TABLE II. 



SPECIFIC GRAVITY AND ATOMIC WEIGHTS OF THE GASES 

 REFERRED TO OXYGEN GAS AS UNITY. 



[. GASES WHOSE ATOMIC WEIGHT = SPECIFIC GRAVITY. 



Oxygen gas 

 Fluosilicic acid 



II. GASES WHOSE ATOMIC WEIGHT IS DOUBLE THE SPECIFIC 

 GRAVITY. 



Hydrogen gas 

 Carbon vapour 

 Phosphorus vapour 

 Azotic gas 

 Sulphur vapour 

 Tellurium vapour 

 Chlorine gas 

 Arsenic vapour 

 Selenium vapour 

 Iodine vapour 



a. Simple Bodies. 



b. Compounds of Simple Combustibles and Hydrogen. 



Carburetted hydrogen 

 Fhosphuretted hydrogen 

 Subphosphuretted hydrogen 

 Bihydroguret of phosphorus 

 Olefiant gas 

 Oil gas 



Sulphuretted hydrogen 

 Telluretted hydrogen 

 Oil of turpentine 

 Arsenietted hydrogen 

 Selenicttcd hydregen 



