494 Dr. E. J. Mills on Cumulative Resolution. 



hydration water), are derivable, with one exception*, from the 

 equations 



wN 3 H 8 C0 3 -(n-l)NH 5 0=N B+1 H 3 „ +6 C„0 2o+1 ..., (1) 



3 = v[NH 3 C0 2 ], 

 and 

 2nNH,CO,-(n-l) C0 2 =N 2 „H 6 „C„ + ,0 2 „ +2 ..., . (2) 



T)=„[N 2 H e C0 2 ] 



5 = v 2 [N 4 H 12 C0 2 ] 

 &c. &c. 



^)=v*[NH 3 ]. 



This will be evident from the following Tables, in which r 

 denotes the ratio of N to C in the known carbonates, as above 

 referred to. 



Table I. (Equation 1). 

 n r^N-.G. 



-1-6 2 : 5 



14 2 : 7 



0-0 1 : 



+ 1-0 2 : 1 



1-142857 15 : 8 



1-3 7 : 4 



1-5 5 : 3 



1-63 3f: 2 



2-0 3 : 2 



3-0 4 : 3 



T) or cc 1 : 1 



Table II. (Equation 2). 



n r 2 = N:C. 

 0-0 : 1 



0-16 2 : 7 



0-25 2 : 5 



1-0 1 : 1 



2-0 4 : 3 



3-0 3 : 2 



4-142857 3|: 2 



5-0 5 : 3 



70 7 : 4 



15-0 15 : 8 



oc 2 : 1 



* Rose's nine-fourths carbonate, already recognized as quite isolated in 

 its composition. 



