I return the Book you were so kind to favour me with. Upon Consideration, tho’ I wish to do any thing you can be desirous I should do, I find it impossible for me to write any thing worth reading on a Subject that will be exhausted by Dr. Fothergill and yourself, who are both so much better acquainted with it. I am ever, with the greatest Respect and Esteem, Dear Sir, Your most obedient humble Servant