Copy letter from Robert William Frederick Harrison, to Professor John Alexander MacWilliam, The University, Aberdeen, North Britain MacWilliam's paper, 'On the Properties of the Arterial and Venous Wall', has been under consideration by a Committee of the Society, and he is instructed by Sir M Foster to inform MacWilliam that it has been decided by the Committee to recommend the publication of the paper in the 'Proceedings [of the Royal Society]' provided he is prepared to condense it to about half its present dimensions, omitting such illustrations as would become unnecessary. Queries if MacWilliam is prepared to carry out this recommendation, in which case he will send the manuscript for amendment. 13 January 1902