The profession which he adopted was that of a solicitor, and from 1833 to 1847 he was engaged in active practice in Newcastle as a member of the firm of Donkin, Stable & Armstrong.
Report of British Association on Screw-threads, 1900.) Attempts in this direction were originally made by Whitworth, Clement, Donkin, Rogers, Bond and others, but we still need a higher accuracy in screw-threads.
Here is an open plot of ground, Donkin Reserve, containing the lighthouse and a stone pyramid with an inscription in memory of Elizabeth, wife of Sir Rufane Donkin, described as "one of the most perfect of human beings, who has given her name to the town below."
Under the supervision of Sir Rufane Donkin, acting governor of the Cape, a town was laid out at the base of the hills.
The highest scientific authority of the day, Major James Rennell, believed, however, that the Niger ended, by evaporation, in the country of "Wangara" - a region located by him, through a misreading of Idrisi, far too much 1 Sir Rufane Donkin in a curious and learned work, A Dissertation on.
Donkin believed that the desert, advancing eastwards, would overwhelm the Egyptian Nile also in its lower course.