The Analysis of the Organismal Differentials of Gray Norway Rats and of Two Mutant Races by Means of Transplantation

Abstract

In exps. on rats of Wistar strains A and B, inbred through 60-67 generations by brother-sister matings, transplantation of tissues from strain A to strain B gave results corresponding to the results of ordinary homoiotransplantation. Transplantation between different litters within inbred strain A likewise gave results very similar to those obtained in homoiotransplantation, and this was true of grafts of thyroid gland, as well as of those of cartilage. Transplantation between different litters within inbred strain B gave hotter results, but even these results remained far behind those obtained in ordinary syngenesiotransplanta-ion from brother to brother.