Jeffrey, John, Alnwick, Northumb., cm (1767). In March 1767 he announced that he had devised ‘a New Method of Destroying BUGS, entirely unknown to any person or persons whatsoever but himself … He will undertake to kill them either in Beds or in any other Kind of Household Furniture wherein they may be lodged, and will uphold the same to stand for the Term of Seven Years’. [Newcastle Courant, 21 March 1767]