Referee's report by Edward Albert Sharpey-Schafer, on a paper 'The oestrous cycle and the formation of the corpus luteum in the sheep' by Francis Hugh Adam Marshall Sectional Committee: Zoology Recommended for publication in Philosophical Transactions. All the illustrations should be reproduced. Schafer thinks this an excellent piece of research. [Published in Philosophical Transactions B, 1904]. Endorsed on verso as received 23 February 1903. 21 February 1903