70 DISEASES or CATTLE. 



stings. This poison is a sevei-e local irritant and may even cause 

 local gangrene. It also has a depressing effect upon the central 

 nervous system and destroys the red-blood corpuscles. To produce 

 these general effects it must be introduced in very large quantities, as 

 when an animal is stung by a swarm of bees or wasps. 



Treatment. — The treatment is to wash the parts with diluted am- 

 monia or jjermanganate of potassium solution and to give stimulants 

 internally. If there is so much swelling about the head and nostrils 

 as to interfere with breathing, tr;icheotomy may be necessaiy. 



POISONING WITH SPANISH FLY. 



Spanish fly, in the form of powdered cantharides, may be given in 

 an overdose, or when applied as a blister to too large a surface of 

 skin enough may be absorbed to poison. If given by the mouth, it 

 causes severe irritation of the gastrointestinal tract, shown by saliva- 

 tion, sore throat, colic, bloody diarrhea, etc. It also produces, whether 

 given b_y the mouth or absorbed through the skin, irritation of the 

 urinary tract, as shown by frequent and j^ainful urination. If death 

 results, it is due to respiratory paralysis. 



Treatment. — Give protectives and the white of egg, with opium. 

 Do not give oils or alcohol. 



