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XLIII. On the Operculum of Gasteropodous Mollusca, and an at- 
tempt to prove that it is homologous or identical with the second Valve 
OF Conehifera.) )By.d.H.Gray, Hag. BRiSe ssciccicccconcsssececeassenss 476 
XLIV. On Cannabis indica, Indian Hemp. By Avexanper Curts- 
T1soNn, F.B.S.E., Member of the Royal Medical Society ..............006 483 
Proceedings of the Linnzan Society ; Zoological Society ; Botanical 
RPICEY OLE DULE NG ys ccsete cates vane oaics etsvardncs cases tesdese 493—509 
On Scolicia prisca, 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 Cyprea umbilicata 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 ...........ccssssscscssaseseceeee 509—519 
EROGX rn cscscthavess a aus clageiaSiacs sisialasisla'nctere Be cule ciswie w capenae cenamen ale sive obenes Caesar LO 
