Paper, 'On certain changes and transformations occurring in the corpuscles of the blood leading to the formation of cells, muscular fibers, and chorion' by Martin Barry Illustrations for this paper have been separated from the manuscript and are found at PT/74/7/17-19. Subject: Physiology Published in Philosophical Transactions as 'On the corpuscles of the blood'. Received by the Royal Society on 14 May 1840. Read 4 June 1840. Abstract published in Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London [later Proceedings of the Royal Society of London], Volume 4, 1843. [1840]