ABSTRACT
This is only the concluding part of a letter, which a note by Mr Howkins states to have been dated June 9th, 1711 In the words with which this fragment opens, Cotes is giving his emendation of Prop. XXXVIII. as it stood in the “Paper” which Newton sent him in his letter of March 24. The former part of the letter must have contained Prop, XXXVII. in the form in which Cotes had at last put it, and also his modification of the construction in the Scholium, where Newton had made the latus rectum of the smaller parabolas 8 AB and that of the others 32 CD.
