Referee's report by Edwin Stephen Goodrich, on a paper 'On the evolution of the vertebral column in birds, illustrated by its development in Larus and Struthio' by Johannes Piiper Sectional Committee: Zoology Recommended for publication in the 'Philosophical Transactions of the Royal Society'. The paper should be very much shortened. Many of the illustrations should be replaced with a few clear diagrams. [Published in the Philosophical Transactions of the Royal Society B, 1928] Endorsed on verso as received 28 June 1927. [June 1927]