312 



IOWA DEPARTMENT OF AGRICULTURE 



The result of this investigation covering a period of six months (De- 

 cember, 1907, to June, 1908, inclusive) is condensed in the following table: 



SUMMARY OF TUBERCULOSIS INVESTIGATION FOR SIX MONTHS. 



The committee also made inquiries concerning the percentage of animals 

 found affected with tuberculosis in Chicago and Omaha, with the results 

 indicated in the following letters: 



Union Stock Yards, Chicago, Dec. 15, 1908. 

 Prof. C. F. Curtiss, 



Experiment Station, 

 Ames, Iowa. 

 Dear Sir: — Replying to your letter of December 12th regarding tuber- 

 culosis in live stock from Iowa points, while our figures are necessarily 

 incomplete owing to the difficulty in securing identification, we feel that 

 the following figures are approximate averages on animals found infected: 



Steers 2 per cent 



Dairy cows 10 per cent 



Hogs 6 per cent 



Please bear in mind that proportion of infected subjects varies greatly 

 in different districts, but a fair average of all cattle would be around three 

 per cent. 



Yours respectfully, 

 (Signed) SWIFT & COMPANY. 



Per J. J. Ferguson. 



Chicago, December 21, 1908. 

 Mr. Arthur Meeker, 



Armour & Company, Union Stock Yards, 

 Chicago, 111. 

 My Dear Mr. Meeker: — Referring to the attached: Owing to the lack 

 of data it is impossible to show the exact number of cattle and hogs from 

 Iowa condemned during the past year on account of tuberculosis. 



