Paper, 'On the urinary organs and secretion of some of the amphibia' by John Davy Subject: Zoology Published in Philosophical Transactions as 'On the urinary organs and secretions of some of the amphibia. By John Davy, M. D. F. R. S. Communicated by the Society for the Improvement of Animal Chemistry'. Written by Davy in Colombo, Sri Lanka and addressed to Sir Humphry Davy at 23 Grosvenor Street, London. Read 2 April 1818. 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 2, 1833. 25 March 1817