Royal Society. 147 



and almond; and of tropical drug- or food-yielding species Theobroma 

 cacao, Croton Eluteria and Tiglium, Paullinia sorbiJis, and Mallotxis 

 philippinens'is. As far as possible the plates have been drawn from 

 living specimens. They are drawn and lithographed by Mr. Jilair, 

 a young and rising botanical artist, and are well executed, with 

 abuudant structural detail and colouring not overdone, though in 

 some cases (e. g. Mentha viridis and Digitalis purpurea) the pictorial 

 effect is marred by superabundance of shading. The letterpress, 

 both botanical and pharmacological, is full and accurate; and alto- 

 gether the book may be safely recommended as likely to be a com- 

 plete and trustworthy handbook for medical men, chemists, and all 

 wlio are interested in the subject. 



PROCEEDI^'GS OF LEARNED SOCIETIES. 

 EOYAL SOCIETY. 



November 25, 1875. — Dr. J. Dalton Hooker, C.B., President, in 



the Chair. 



" On the Structure and Relations of the Alcyonarian Heliopora 

 ccerulea, with some Account of the Anatomy of a Species of Sarco- 

 phyton ; Notes on the Structure of Species of the Genera Millepora, 

 Focillopora, and Stylaster ; and Remarks on the Affinities of certain 

 Palaeozoic Corals." By H. N. Moseley, M.A. (Oxon.), Naturalist 

 to the ' Challenger ' Expedition. 



Introduction. — The author having undertaken the examination of 

 the Deep-sea Corals dredged during the voyage of H.M.S. ' Chal- 

 lenger,' was led to the study of the structure of corals generally, and 

 especially to the examination of the Milleporidae, which seemed of 

 peculiar interest, since they had been determined by Professor 

 Agassiz to be Hydroids, and had been regarded by him as living re- 

 presentatives of the PalcBOZoic Rugosa. Millipora alcicornis was 

 obtained and examined at Bermuda, and another species of Mille- 

 pora at Zamboangan, Mindanao, Philippine Islands. The examina- 

 tion of these Millepores was found to be beset with great diffi- 

 culties, and the present notes on their structure are to be regarded 

 as only preliminary. Eurther investigations will be made with 

 specimens which it is hoped will be obtained at the Sandwich 

 Islands. At Zamboangan, Heliopora ccprulea was obtained, and 

 found at once to be an Alcyonarian. Its structure is described in 

 full in the paper. Another Alc^'onarian of the genus jSarcojjhyton 

 (Lesson) was examined for the purpose of comparison. It proved to 

 present special features of interest, and a general description of its 

 anatomy also is therefore given. Notes are further appended on 

 the anatomy of a species of Focillopora obtained at Zamboangan. 



