A F F E N ]D I A . 



USEFUL TABLES. 



No. I. 



;juality in the Weight of Cattle, between Scores, Slones, and Hun 

 dred- Wights. By the Right Honourable the Lord Somervillc. 



No. II. 

 SALTS. BY DR. FORDYCE. 



Vitriolic acid unites with, 



1. Fixed vegetable alkali, forming vitriolated tartar. 



2. Fixed fossil alkali, forming Glauber's salts. 



3. Calcareous earth, forming selenite. 



4. Magnesia, forming magnesian Glauber's salts. 



5. Clay or earth of alum, forming alum. 

 Nitrous acid unites with, 



1. Fixed vegetable alkali, forming nitre. 



2. Volatile alkali, forming nitrous ammoniac. 



3. Calcareous earth. 



4. Magnesia. 

 Muriatic arid unites with, 



1. Fixed fossil alkali, forming sea-salt. 



2, Volatile alkali, forming sal ammoniac- 



Moriadc 



