DISEASES OF THE LOWER ANIMALS 



coming trichinosis are now fairly well in hand. 

 Fifty millions will buy a good many shoes and 

 stockings for farmers' children. While this 

 work was in progress a bill was actually intro- 

 duced in Congress, and defended by able and 

 well-meaning people, which was aimed to stop 

 these experiments; but it permitted any 

 butcher to feed trichinous meat or offal to dogs, 

 cats, pigs, rats, or any other animals, causing 

 trichinosis in them, and so long as it was not 

 done as an experiment he would be violating 

 no law. Trichinosis in man was never recog- 

 nized as the same disease as that which occurs 

 in pigs until 1860 when some of the parasites 

 taken from a patient who had died of the dis- 

 ease were fed to rabbits. In these animals 

 were found the same type of trichinae as were 

 found in the pork which the patient had eaten. 

 These cases had never before been understood 

 but now the matter is cleared up. 



When the Bureau of Animal Industry was Texas 

 created in the United States in 1884, the cattle fever, 

 industry in this country suffered heavy annual 

 losses from a disease called Texas fever. The 

 disease appeared among cattle in the herds, in 

 the stock yards, in cars and ships on the way to 

 market, and death occurred in 50 per cent, to 



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