Printed letter from H. A. Hyde, Keeper of the Department of Botany, to Professor Yapp. Hyde thanks Yapp for allowing Mr. Wade to work on the Augustin Ley Herbarium and that Wade will send a postcard in good time before his visit. The signature is handwritten. At the top of the page in red ink there is, 'Amgueddfa Genedlaethol Cymru', its telephone line underneath on the left and on the right, is 'Department of Botany, National Museum of Wales, Cardiff'.