Referee's report by Henry George Plimmer, on a paper 'On the variation in the growth of mammalian tissue in vitro according to the age of the animal' by Albert J Walton Sectional Committee: Physiology Not recommended for publication in the 'Proceedings of the Royal Society of London'. Suggests shortening the paper, and printing all of the illustrations. Considers the paper an 'interesting continuation' of research already published by the Royal Society by the same author. [Published in the 'Proceedings of the Royal Society of London', 1915] Endorsed on verso as received 26 January 1915. [January 1915]