Letter from Louis Rosenhead, on a paper 'The disturbance due to a line-source in a semi-infinite elastic medium with a single surface layer' by Margery Newlands, to David Brunt, secretary of the Royal Society Paper reference code: A293 Rosenhead discusses the papers 'reasoned mathematical arguments' and the problem this creates. Therefore recommends the paper be re-written and presented as a brief paper and a supplementary paper containing a series of appendices. Written at The University of Liverpool, Mathematical Institute, Department of Applied Mathematics [England]. [Published in Philosophical Transactions A, 1952]. Date received not given. 1 February 1952