Products and All products handled by participants listed in this publication meet the specific require- 



Classifications ments for a "U.S. Pullorum-Typhoid Clean" classification. The combined letter and 



numeral symbols shown in the fourth column identify the particular breed, strain, or 

 trade name of the participant's products (see tables 2 and 3 in the appendix). Addi- 

 tional classifications for which these products qualify are identified in column five by 

 MG, "U.S. M. Gallisepticum Clean"; and App., "U.S. Approved." Those classified as 

 approved were found to conform with the critieria for the breed and strain represented. 



IV 



