I am very honoured by your request that I should sent a communication to the Philosophical Section at the Congress at Cambridge. I have long since abandoned the mathematical study of philosophy to give myself entirely to the new topic of vector calculus, which in a short period of time, has expanded far more than I dared hope. Previous studies have logic summers have greatly helped me establish the vector notation. Some manual for the logical method that formed the basis of new notation, is found in the notes of the 1st volume of the new publication 'Analyse vectorielle générale', a publication I will make sure is ready before the congress. (In collaboration with Marcolongo). Do you believe that a communication on the logical-formal laws of a general notation system would be interesting to delegates in the Philosophical Section? If you believe it will, I can promise you a communication to which I will, in a little while, give you the exact title. It will not have the importance that you would like and that I wish it would have; but it will have the sole merit of showing how both simple and precise is the notation of your great Hamilton, of whom I am ardent admirer. I must warn you that I almost certainly will not be able to attend the Congress, because in August I will still have lessons to the Military Academy due to accelerated courses.
Please accept my thanks and best regards with the assurance of my highest esteem.