Alle de ontleed- genees- en heelkindige werken...van Fredrik Ruysch... vol. 3 Amsterdam, 1744. Etching with engraving. National Library of Medicine. Frederik Ruysch (1638-1731) [anatomist] Ruysch’s "repository of curiosities" included displays of infant and fetal skeletons, placed in landscapes of human and animal body parts. This ghastly musicale is notable for its morbid whimsy.