Letter, from Henry Oldenburg to James Grandi, dated at London Thanks Grandi for his correspondence about the human foetus forced out through an abscess and about an eight-month embryo formed in the Fallopian tube; that Boyle had published a treatise on the 'Mechanical origin of qualities' and a discourse about the chemist's doctrine of qualities; concerning Glisson's work on 'natural perception'; discussing the work of Leibniz - that he hoped to reduce the whole of mechanics to geometry and that the definition of problems concerning elasticity and hydraulics etc are within his power 6 October 1676