Infant skeleton, showing polydactyly, in 2 numbered illustrations. 1 complete skeleton shown, with polydactyly of both hands and feet; 7 fingers and 9 toes shown. 1 hand shows 6 complete fingers and 1 finger with 2 distal phalanges. 1 inset illustration of leg and foot bones showing 7 complete toes and one toe with 2 distal phalanges.
Part of the book: Kerckring, Theodor, 1640-1693. Spicilegium anatomicum : continens observationum anatomicarum rariorum centuriam unam : nec non Osteogeniam foetuum, in qua quid cuique ossiculo singulis accedat mensibus, quidue decedat & in eo per varia immutetur tempora, accuratissimáe oculis subjicitur. Amstelodami [Amsterdam]: Sumptibus Andreæ Frisii, 1670.