Table 2.

A tabulation of Medawar's experiments for inducing tolerance by inoculating newborn mice with cells from mice of different inbred strains, from July 1952 to May 1953. The data came from Medawar's laboratory notes stored in Box 43, Folder C156, Peter Brian Medawar Papers, Wellcome Library, London.

CasesInjectedFailedSurvival for 12–14 daysSurvival for 15–30 daysSurvival for 31 days or longer
EMB-1655
EMB-1466
EMB-1244
EMB-2477
EMB-3166
EMB-57752
EMB-58211
EMB-8699
EMB-28651
EMB-17642
EMB-62761
EMB-888
EMB-766
EMB-1977
NB-10431
Total9082431
Rate of success (all)8.9%
Rate of success (graft survival for 15 days or longer)4.4%
Rate of success (graft survival for 31 days or longer)1.1%