Referee's report by George Ingram Taylor, on a paper 'A stream-line filter' by Henry Selby Hele-Shaw Sectional Committee: Physics Recommended for publication in the Proceedings of the Royal Society of London. Suggests the author should clarify some of the statements given in the experimental part. Request clarification for some of the lines on the diagram. [Published in the 'Proceedings of the Royal Society of London' A, 1923] Endorsed on verso as received 1 May 1923. [May 1923]