To John Churchman
Philadelphia Apr. 4. 1792.
The clerkship in my office was filled up before I received your favor of the day before yesterday, of which I should have given you immediate notice but for extreme occupation till this moment. I wish you, with sincerity, every success in your magnetic investigations, tho’ I acknolege I am not sanguine that the observations of one life may suffice to establish a general theory. I am with esteem Sir your humble servt,