Referee's report by Lancelot Thomas Hogben, on a paper 'The linkage between the genes for colour-blindness and haemophilia in man' by Julia Bell and John Burdon Sanderson Haldane Sectional Committee: Physiology Recommended for publication in the 'Proceedings of the Royal Society of London', if the extra pages can be accomodated, otherwise it should be published in the Philosophical Transactions. Makes some minor suggestions for the text. Has not checked all the calculations. [Published in the 'Proceedings of the Royal Society of London'] Endorsed on verso as received 13 January 1937. [January 1937]