Boston Decr. 2d. 1760 Sr.,

I recd. yrs. & the Cash by Mr. Durant & have delivered him the Note. Upon recollection I found where I Overcharged a Years Interest occasioned as you may see by the old stile Year begginning in March1 wch. I had forgot to take notice of, with regard to Interest upon Interest however right it might be I have not now nor ever wil take it, thô it would not equal the depreciation of the money. Herewith you have my calculation, & if youll please to observe that the Int. which is due should be paid before you Upon the Principle, you will then see that this method of calculation amounts to the Same thing. I have carefully examined it because we are at a distance & suppose there is no Error in it. Yrs. &c.,

RTP

Vid. his letter to me for the Calculation

LbC ; addressed: "To Mr. Richard Codman at Falmouth."

1.

Under the Julian calendar the year began on Mar. 25. In 1752, by act of Parliament, England and her colonies adopted the Gregorian calendar which began the year on Jan. 1.