TRANSACTIONS OP THE SECTIONS. 



87 



Table showing the smallest per-centage of Salts required in solution for rendering 

 Muslin non-inflammable,— A of crystallized, B of anhydrous salts ; twelve inches 

 square of the muslin employed weighing 33-4 grains. 



phate of ammonia, the double salt of the same with phosphate of soda, the mixture of 

 the same with sal-ammonia, the sulphate of ammonia, and the tungstate of soda. 1 he 

 sulphate of ammonia is cheaper, and required in a smaller proportion than the other 

 salts. According to Mr. Walter Crura, it gives a good finish to the fabrics ; and as 

 madder-purple is the only colour which is slightly injured by this salt it may be em- 

 ployed in the manufacturing processes of almost all light fabrics. But 111 laundries 



