Referee's report by Horace Lamb, on a paper 'On the lateral vibrations of bars of conical type' by Dorothy Wrinch Sectional Committee: Mathematics Recommended for publication in the 'Proceedings of the Royal Society of London'. The paper completes a series of researches by previous authors. The author should be asked to make minor modifications before the manuscript is sent to the printers. [Published in the 'Proceedings of the Royal Society of London' A, 1922] Endorsed on verso as received 20 June 1922. [June 1922]