infectious laryngotracheitis. The latter can be eradicated by measures recom- 

 mended by the Department of Veterinary Science, Amherst, Mass. While such 

 measures are in principle basic for the eradication of most infectious diseases, 

 some poultrynien do not appreciate that for pullorum disease a diagnostic means is 

 available that aids in the establishment and maintenance of flocks free of this 

 disease. Massachusetts poultrymen at present are not in position to adopt a 

 system of testing different from annual testing, because there are too many 

 sources of infection in this State. In order to reduce the number of infected flocks 

 and to prevent the spread of infection, every effective means should be retained in 

 our eradication program, which includes, above all, annual testing. 



The total number of partially tested flocks was 159, representing 107,043 birds, 

 or approximately 36 per cent of the total birds tested. 



Table 4— Comparison of 1931-32 and 1932-33 Testing 



Comparison of the Past Two Testing Seasons 



In comparing the past two testing seasons, one is greatly impressed by the 

 decrease in tested flocks, birds, tests, and non-reacting flocks. Table 4 shows 

 that Berkshire, Dukes, and Suffolk Counties had increases in tested birds and 



