54 



SPECIFIC GRAVITY TABLES. 



AUTHORITIES. 



1 Caliours. 



2 Cahours. 



C. Cent. 5. 20. 

 B. S. C. 20. 190. 



3 Cahours. C. Cent. 4. 4S2. j 5 Cahours. 



4 Cahours. C. Cent. 4. 482. , 6 Cahours. 



B. S. C. 20. 100. 



C. Cent. 5. 20. 



