Copy letter from Robert William Frederick Harrison to The Secretaire Perpetuel, l'Academie des Sciences, L'Institut de France, Paris 'I have to acknowledge the receipt of ten copies of the 'Rapports' prepared by the Academie des Sciences for presentation to the General Assembly of the International Association of Academies to be held this year at St Petersburg, and I am to ask if you will be so good as to cause me to be furnished with twenty further copies of the same document for the use of a Committee of the Royal Society.' 15 February 1913