<5r>

Feb 18th 16$\frac{69}{70}$.

Sr

Two days since I received yors & Mr Darys letter wth a book for wch I thank Mr Dary, & have \here/ inclosed sent him my thoughts of wt hee desired. That solution of the annuity Probleme if it will bee of any use you have my leave to insert it into the Phil Transactions soe it bee wthout my name to it. For I see not what there is desirable in publick esteeme, were I able to acquire & maintaine it. It would perhaps increase my acquaintance, ye thing wch I cheifly study to decline. Of that Problem I could give exacter solutions but that I have noe leisure at prsent for computations. I now see a way too how ye {illeg}|a|ggregate of ye termes of Musicall progressions may bee found (m{illeg}|u|ch after the same manner) by Logarithms, but ye calculations for finding out those rules would bee still more troublesom, And I shall rather stay till you have leisure to{illeg} doe mee the favour of communicating wt you have already composed on yt subject.

Yor much obliged
Servant

I. Newton.

<5v>

These For Mr John Collins
at his house the signe of the
three crowns in Bloomsbury
in London. |4|