DISEASES AND PESTS. OF FOWLS 
acts partly as an emetic, causing the fowl | 
to make an effort to vomit. In cases of 
mineral poisons, post-mortem examinations 
show inflammation of the stomach and the 
digestive tract. 
Sources of poison. Poultry are likely to 
get poisoned from the following sources: 
Fertilizers (e. g., nitrate of soda) used 
on fields in which fowls scratch for food. 
Such cases are rare. 
Insecticides and fungicides (e. g., Paris 
green [arsenic], lead arsenate, Bordeaux 
mixture) applied to plants under which 
fowls run. If sprays are mixed in correct 
proportions and used in normal quantities, 
there is little danger to poultry feeding on 
the grass below sprayed trees. Great care 
should, however, be taken in disposing of 
the sediment and the residue after spraying 
operations are completed. 
Rat poisons (e. g., phosphorus, strych- 
nine, baryta). These poisons are particu- 
larly dangerous when mixed with cornmeal 
or other bait attractive to fowls. The best 
way to set rat poison is to put it in a piece 
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