Dermatoglyphs, Chromosome Reports, Dermatoglyphs and Karyotypes for J Luder Contains material relating to a pair of non-identical twins, consisting of dermatoglyphic reports, chromosome analysis reports, diagrams showing dermal ridge patterns on the hands and feet, photographs of palm and foot prints, results of blood typing and karyotypes for the siblings, where the female twin had XY gonadal dysgenesis. 1962