Irish Journal of Medical Science (1926-1967)April 1927, Volume 2, Issue 4, pp 186–191 | Cite asTransactions of the Royal Academy of Medicine in IrelandArticleFirst Online: 25 October 2008This is a preview of subscription content, log in to check access.PreviewUnable to display preview. Download preview PDF.Unable to display preview. Download preview PDF.Copyright information© Springer 1927