Referee's report by James Gray, on a paper 'Osmotic pressures in the hen's egg' by Edward J Blades Sectional Committee: Physiology Recommended for publication in the 'Proceedings of the Royal Society of London'. Suggests the description of the experimental material should be much more precise, especially regarding the freshness of the eggs. Provides discussion on how the freshness of the eggs would affect the experiment and results. [Published in the 'Proceedings of the Royal Society of London' B, 1934] Endorsed on verso as received 29 November 1933. [November 1933]