 The family settled at 7 Argyle Street, near Hanover Square, where Gurney continued his practice as a surgeon.There he expanded his scientific knowledge and started giving a series of lectures on the elements of chemical science to the Surrey Institution, where he was appointed lecturer in 1822.A son, Goldsworthy John, was also born to the couple in that year, at Launcells (later to die relatively young in 1847).