MEDICINES AND RECEIPTS 
615 
31. Vaseline. 
Source. — Vaseline, a product of petroleum oil, is used in 
the form of a yellow salve. 
Action and Use. — Vaseline has a very healing and sooth- 
ing action on wounds or irritated parts, and is used in nearly 
all kinds of healing salves, also for mixing blisters, etc. 
32. Verdigris. 
Source. — Verdigris is a preparation from copper salts, 
and is used in the form of a blue, fine, heavy powder. 
Action and Use. — It is but little used now internally, as 
sulphate of iron and copper take its place. It is used for 
making up healing salves for wounds, etc. See also the 
receipt for green salve. 
