Second referee's report by Frederic Wood Jones, on a paper 'The heart of the salamander (salamandra salamandra l.), with special reference to the conducting (connecting) system and its bearing on the phylogeny of the conducting systems of mammalian and avian hearts' by F Davies and E T B Francis Sectional committee: Zoology Recommended for publication, now that the paper has been cut down to a desireable length. [Published in Philosophical Transactions B,, 1941]. Endorsed on verso as received 16 April 1941. April 1941