1. Hydrocianic 



2. Formic 



GENERAL OBSERVATIONS. 

 3. HYDRACIDS. 



3-375 I 3. Muriatic 

 4-625 I 5. Hydriodic 



461 



4-625 

 15-625 



Of the first set 1 2 are whole numbers ; 6 end 

 in 0*5 and 4 in 0*75. Or, in other words* 



12 are multiples of oxygen, 

 6 are multiples of 4 atoms of hydrogen, 

 4 are multiples of 2 atoms of hydrogen. 



Of the second set 3 are whole numbers, and 

 the other 7 end in O5. Or, in other words, 



3 are multiples of 1 atom of oxygen, 

 7 are multiples of 2 atoms of hydrogen. 



The third set containing an atom of hydrogen 

 united to an atom of a simple or compound sup- 

 porter or acid, it is obvious that they can only 

 be multiples of 1 atom of hydrogen. Accord- 

 ingly, they end either in 0*62,5 or in O37<5. 



10. The atomic weights of the bases (exclud- 

 ing ammonia) are as follows : ' 



1. Lithia 



2. Alumina 



3. Magnesia 



4. Glucina 



5. Lime 



6. Soda 



7. Protoxide of nickel 



8. Protoxide of cobalt 

 Q. Protoxide of iron 



