RECIPES, FORMULAE AND USEFUL HINTS. 141 



Arsenical soap. 



SIMON'S. 



Soap 1 1 Ib. 



Alum 8 oz. 



Carbonate of potash 4 oz. 



Common salt 4 oz. 



Powdered chalk 8 oz. 



Powdered camphor 2 oz. 



Water I pt. 

 Melted by heat, the camphor being added last. 



Arsenical soap. 



LAURENT'S. 



Arsenite of potash 2 dr. 



Alum 2 dr. 



Powdered camphor 2 dr. 



White soap i oz. 



Alcohol 6 oz. 



The first two placed in a bottle and the alcohol poured over them. 



When dissolved, the other ingredients are added. This composition 

 requires to be tightly corked. 



Bullock's arsenical powder. 



White arsenic I Ib. 



Burnt alum I Ib. 



Tanner's bark 2 Ibs. 



Camphor i oz. 



Musk i oz. 



The first three to be firmly powdered and passed through a sieve, the 

 others then to be added and the whole thoroughly mixed. 



Corrosive sublimate solution. 



Dissolve one ounce of corrosive sublimate in one quart of alcohol in 

 a glass vessel. This solution is to be applied with a string-wound brush 

 as the presence of metal will produce a discoloration. 



