Referee's report by William Sharpey, on a paper 'On the penetration of spermatozoa into the interior of the ovum; a note showing this to have been recorded as an established fact in the Philosophical Transactions for 1843' by Martin Barry Not recommended for publication in the 'Philosophical Transactions of the Royal Society', suggests an abstract in the Proceedings would be sufficient. Describes disagreements between Martin Barry and Henry Nelson. Subject: Physiology [Published in the Proceedings of the Royal Society of London] 10 May 1853