Referee's report by William Benjamin Carpenter, on a paper 'On the genera Heterophyllia, Battersbyia, Palaecyclus, and Asterosmilia; the anatomy of their species, and their position in the classification of sclerodermic zoantharia' by Peter Martin Duncan Recommended for publication in the 'Philosophical Transactions of the Royal Society'. Wonders whether the Philosophical Transactions is the best place for the paper, as it was considered that purely systematic papers should be published elsewhere. Subject: Geology, Palaeontology [Published in the Philosophical Transactions of the Royal Society] 20 June 1867