Table III. Distribution of Infection among Various Breeds. 



Rhode Island Red.s 

 White Rocks 

 Barred Rocks 

 White Leghorns 

 White Wyandottes 

 Miscellaneous 



Table IV. Classification of the Sizes of Flocks tested. 



Total flocks tested, 116. 



Table V. Number of Flocks having Certain Limits of Infection. 



Number of flocks per cent . 

 Number of flocks 1- 5 per cent 

 Number of flocks 6-10 per cent 

 Number of flocks 11-15 per cent 

 Number of flocks 16-20 per cent 

 Number of flocks 21-25 per cent 



Number of flocks 26-30 per cent 

 Number of flocks 31-35 per cent 

 Number of flocks 36-40 per cent 

 Number of flocks 41-50 per cent 

 Number of flocks 51-60 per cent 

 Number of flocks 60 per cent -f- 



REDUCING INFECTION. 



A degree of success is being attained each year as regards elimination. From a 

 review of the data obtained during the last year, there is evidence of improvement 

 among the breeding flocks in the State as a result of the testing work. 



During this period, 1920-21, 35 poultry farms, doing business in selhng eggs for 

 hatching and selling day-old chicks, have been found by the test to be free from 



