Sometime since, I wrote to you, in answer to the letter which you had written to my deceased uncle, Mr. Rittenhouse. At the same time, I did myself the pleasure to send to you a copy of my memoir, concerning the fascinating faculty which has been ascribed to different species of Serpents. As these went by a private hand, I am doubtful whether you have received them. In my letter, I requested that you would inform me to whom I should pay the money, which you kindly lent to me, a considerable time since. I have now to make the same request.

We are anxious to see your memoir concerning the bones which you mention to have been found in digging for nitre. I wish it could be sent soon, in which case it would be in time for the 4th vol. of the Transactions, now in press. I do not imagine that this volume can be closed in less than four weeks from this date. We are slow in our motions. I am, Sir, with the greatest respect, your most humble and obedient servant, &c.