Report by Lewis Fry Richardson, on a paper 'The aerodynamic drag of the earth’s surface and the value of von Karman’s constant in the lower atmosphere' by Percival Albert Sheppard He has received the author's amendments and it is a great improvement. However, direct observations are very scarce. The amended paper should be accepted. [Published in Proceedings of the Royal Society A, 1947]. Endorsed on recto as received 23 May 1946. May 1946