Referee's report by Arthur Keith, on a paper 'On the endocranial cast of the adolescent Sinanthropus skull' by Davidson Black Sectional Committee: Physiology Recommended for publication in the 'Philosophical Transactions of the Royal Society'. Finds the paper as it stands a difficult one to follow if it intends to be read before the Royal Society. Suggests adding slides to the presentation. [Published in the 'Proceedings of the Royal Society of London' B, 1933] Endorsed on verso as received 17 November 1932. 16 November 1932