Evidence has been presented by various workers that the hen, known to be a carrier of pullorum disease, does not eliminate the infective organism in every egg which she lays. In some instances, only an occasional egg is found to contain the bacterium, while in other cases, 50 per cent or more of the eggs are carriers. Studies at the Virginia experiment station22Runnels, R. A. and von Roekel, H. 1927. The occurrence of white diarrhea infection in eggs laid by hens reacting to the agglutination test. Poultry Science 6., p. 141–147. on eggs laid by 14 reacting hens showed those from 10 to be infected, the infection ranging from 2.8 to 53.9 per cent of the eggs. Kaupp and Dearstyne33Kaupp, B. F. and Dearstyne, R. S. 1927. Bacillary white diarrhea. N. C. Sta. Tech. Bul. 29, p. 44. found that 7.31 per cent of the eggs laid by a group of heavy birds and 5.23 per cent of those laid by Leghorns were infected. A total of 1,681 eggs from 35 trap-nested reactor hens were examined bacteriologically by Tittsler44Tittsler, R. P. 1927. Poultry studies at the Pennsylvania Station. Penn. Station Bul. 213, p. 20–21. at the Pennsylvania station. The infection from individual hens was found to vary greatly, 15 hens producing .