“…This is wrong on two accounts. First, other tissue grafts, such as skin, at birth or even in utero [11] fail to induce tolerance to themselves, as first pointed out by Billingham & Silvers [19] but previously reported by Medawar & Woodruff [20], and then extensively confirmed in birds [14]. Second, as later confirmed by other investigators [21], TE does induce tolerance to other tissues, if transplanted into allogeneic, athymic mice.…”