An account of a salt spring, and another medicinal spring, on the banks of the river weare, or ware in the Bishoprick of Durham in a letter to the Publisher, from the ingenious Mr. Hugh Todd fellow of University College in Oxon, and Chaplain to the right Reverend Father in God Lord Bishop of Carlile
Sir, I Am so much oblig’d to you for your many Favours when I was with you; that now, when I am at so great a distance from Oxon , I cannot pass by any oportunity of serving you, in visiting the Curiosities of Art or Nature (with which the Northern parts, Durham , and Cumberland especially, do abound) and in giving you an account of what, I judge, may be worth your knowledge.