CONTENTS. VII 



Page 

 XLIII. On the Operculum of Gasteropodous ?»Iollusca, and an at- 

 tempt to prove that it is homologous or identical with the second Valve 

 of Conchifera. By J. E. Gray, Esq., F.R.S 470 



XLIV. On Cannabis indica, Indian Hemp. By Alexander Chris- 

 tison, F.B.S.E., Member of the Royal Medical Society 483 



Proceedings of the Linnaean Society ; Zoological Society ; Botanical 



Society of Edinburgh 493 — 509 



On Scoliciaprisca, a Fossil Annelide of the Chalk, by A. de Quatrefages ; 

 Description of a new species of Gorgonia from Australia, by J. E. 

 Gray, Esq., F.R.S. ; Yellow Rain — Distribution of Plants; Popular 

 Impressions in India regarding the Natural History of certain 

 Animals, by H. Torrens, Esq., B.A. &c; on Cypreea umbilkata and 

 C. eximia of Sowerby, by J. E. Gray, Esq., F.R.S. ; the Hippopota- 

 mus at the Zoological Gardens, by Prof. Owen, F.R.S. ; Meteoro- 

 logical Observations and Table 509 — 519 



Index '. 520 



