A P F E N B I X, 



USEFUL TABLES. 



No. I. 



Equality in the Weight of Cattle, between Scores, Stones, and Hun- 

 dred-Weights. By the Right Honourable the Lord Somerville. 



No. II. 



SALTS. BY DR. FORDYCE. 

 Vitriolic acid unites with, 



1. Fixed vegetable alkali, forming vitriolated tartar, 

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



3. Calcareous earth, forming seleniie. 



4. Magnesia, forming magncsian Glauber'- 



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 acid unites with, 



1. Fixed fossil alkali, forming sra-sr.It. 



2. Volatile alkali, forming sal ammoniac. 



3. Calca- 



