436 Dr. Thomson's Observations on the Weights of [Dec. 

 Diary of the Weather at Boston, Jan. 1818. 



Article IV. 



Some Additional OhseiTations on the Weights of the Atoms of 

 Chemical Bodies. By Thomas Thomson, M.D. F.R.S. 



(Continued from p. 350.) 



I shall now proceed to give the weights of the atoms of the 

 compound combustibles, the acids, Sec. as far as the present 

 state of our knowledge will enable us to go. 



Weight of 

 a particle. 



Number of atoms. 



102 Water composed of. .... . 1 o + 1 



103 Carbonic oxide 1 c + 1 



104 Carbonic acid 1 c + 2 



105 Chlorocarbonic oxide .... 1 c + 1 



1 06 Cyanogen 2 c + 1 



k M25 



o 1-760 



a 2-750 



o + Ich .... 6-250 

 a 3-250 



