Second referee's report by Edward Mellanby, on a paper 'The relation of the parathyroid glands to the action of irradiated ergosterol' by N B Taylor, C B Weld and J F Sykes Sectional Committee: Physiology Recommended for publication in the 'Proceedings of the Royal Society of London'. The modifications meet the criticisms well. It should be noted that the paper is of a polemical nature, and does not settle the point. [Published in the 'Proceedings of the Royal Society of London' B, 1934] Endorsed on verso as received 27 December 1933. 22 December 1933