Paper, 'On the mode of formation of the canal for containing the spinal marrow; and on the form of the fins (if they deserve that name) of the proteosaurus' by Sir Everard Home Illustrations for this paper have been separated from the manuscript and are found at PT/73/8/15-16. Subject: Palaeontology Published in Philosophical Transactions as 'On the mode of formation of the canal for containing the spinal marrow, and on the form of the fins (if they deserve that name) of the Proteosaurus'. Read 4 May 1820. 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. [1820]