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. 



