Referee's report by Geoffrey Ingram Taylor, on a paper 'On surface cracks in glasses' by Edward Neville Da Costa Andrade and L C Tsien Sectional committee: Physics Recommended for publication in Proceedings, in full. There is an unnecessary amount of photographs, some of which seem identical. The paper is 'interesting and well-written'. [Published in Proceedings of the Royal Society A, 1937]. Endorsed on verso as received 13 January 1937. January 1937