Referee's report by John Stephenson, on a paper 'On the feeding mechanism of the Branchiopoda' by Herbert Graham Cannon Sectional Committee: Zoology Recommended for publication in the 'Philosophical Transactions of the Royal Society'. Direct observations should be more clearly distinguished from inferences. Suggests further observations be made and the literary style altered. Suggests sending the paper and his remarks to another referee for their opinions. [Published in the Philosophical Transactions of the Royal Society B, 1932 No received date. [1932]