By tomorrows mail-stage I mean to send in one packing-case, two Polygraphs; one that you ordered for your friend, and the other in exchange for the 8vo. Size. If, on tryal, you should like the larger better than the other, be so obliging as to inform me, and I will have one made, send it to you & take the other back. I beg you not to be afraid of giving me trouble in the exchange of the Polygraphs, for I most anxiously wish you to possess such as will be perfectly to your liking, as you know how to use and appreciate the invention, this is not the case with all who have made tryal of them. The cost of carriage you tell me will be charged to you, and I beleive with the least care in shuting them up, no damage can happen to the Machinery.

I expect that those sent by Sea will have arrived about this time. it is matter of some wonder to me that you did not prefer for the use of your secretary, a machine of three pens, as I suppose you must frequently want more than two pieces of writing of the same subject. The additional weight of the Pen-bar is compensated by a great width of machinery, therefore greater accuracy of writing is obtained, provided the board to write on is well secured in a desk form. Altho’ I seldom have occasion for more than one Copy of my letters, yet I commonly use the trible Polygraph & take away the 3d. Pen. I am with high reguard your friend