| Description | Correspondence between J Luder, West Herts Hospital, and Penrose regarding two sets of siblings. Contains eight letters regarding tests on skin specimens and urine for a brother and sister with congenital disorders, and five letters about taking skin and blood specimens from two non-identical twins, one of whom was found to have anomalous sex organs, where a buccal smear test showed no sex chromatin. Encloses a letter on the twins from Chales Pike, Pathologist in charge on the original testicular biopsy. |