Referee's report by Gerald Ponsonby Lenox-Conyngham, on a paper 'The Earth's magnetic field in Southern Africa at the epoch, 1 July 1930' by E N Grindley Sectional Committee: Physics Not recommended for publication in the 'Philosophical Transactions of the Royal Society'. The data are valuable but are merely an accumulation of data. Suggests the paper is more suitable for publication either by the Government of South Africa Magnetic Obervatory at Cape Town, or the Department of Terrestrial Magnetism at the Carnegie Instituion, Washington, who covered much of the cost of the work. The results should be published somewhere, and if nowhere more appropriate is found they should be printed in the Philosophical Transactions. [Published in the Philosophical Transactions of the Royal Society] Endorsed on verso as received 22 January 1940. [January 1940]