FAKMERS' INSTITUTES. 77-9 



150-174 7 8.1 



175-199 10 8.8 



200-224 8 10. 



1895-1897. 



1-24 2 , 7.7 



25-49 22 9.1 



50-74 18 . 11.1 



75-99 16 17.9 



100-124 12 19.2 



- 125-149 8 17.3 



150-174 7 21.G 



175-199 4 22.2 



200-224 3 26. 



During a period of eight years there is comparatively little difference 

 in the losses, but during the period of three years when the disease raged 

 with unusual violence the percentage was much higher in the counties 

 having a large number of hogs per square mile. It is not possible to 

 tell how much of this increase in loss is due to the greater number of 

 hogs, as it so happens that the counties having a very large number of 

 hogs per square mile and large percentage of loss also have one or more 

 I'ivers passing tlirough them. From a comparison of counties about 

 equally situated but the number of hogs per square mile very different, 

 I am of the opinion that the number raised is not a very important 

 factor in determining the per cent, of loss. 



The season of the year when cholera is most prevalent is always in 

 the late summer and fall. It occurs at all times of the year, but like 

 all intestinal diseases, as dysentery, typhoid fever, etc., in people, the 

 conditions for germ development are more favorable in the fall. 



The germs of the disease may be carried from one place to another 

 by birds of carrion. It is a coiumon experience with farmers that hogs 

 can not be raised upon a farm where there is a buzzards' roost. I have 

 learned of isolated outbreaks of the disease occurring from buzzards 

 alighting to eat the carcass of a colt or other animal and soon after the 

 hogs gain access to the same place and contract the disease. 



Dogs prowling about at night carry pieces of dead animals for a mile 

 or more, across pasture fields, feed lots, leaving pieces here and there 

 to be devoured by some unfortunate animal. 



Men may carry the disease from place to place upon their boots, or par- 

 ticles of dirt remain upon the wagon wheel and when they dry drop off 

 in another lot. It should be a general rule never to allow agents for hog 

 cholera cures to come near a pig lot when they are healthy hogs. They 

 go about diseased hogs and do not use the precautions necessary to pre- 

 vent the spread of infection. 



