174 COMMON SENSE 
oxidized and rendered harmless, but when arsenic is so eaten it 
never loses its virulent character.* Phosphorus paste, properly 
prepared for poisoning vermin, is sold by most chemists, and the 
recipe for preparing it may be found in any good book of receipts. 
* An account of the different poisons, and the proper antidotes for them, when 
accidentally swallowed by human beings, or by the lower animals, will be found 
in ‘‘ What to Do in Case of Accident.” The-book is issued by the same house 
that publishes this volume. 
Seba e. meee 
