CONTENTS OF VOL. II. 



[THIRD SERIES.] 



NUMBER VII. 



Page 



I. Observations on the Reproduction of certain Nostochinecs . By 



M. G. Thuret. (With a Plate.) I 



II. On some new Trilobites from Canadian Rocks. By E. J. Chap- 

 man, Prof, of Mineralogy and Geology, University College, Toronto. 9 



III. On the Structure of Humphreyia, an anomalous Bivalve Shell, 

 hitherto confounded with Aspergillum. By Dr. J. E. Gray, F.R.S., 

 V.P.Z.S. &c 16 



IV. On the Spermatolog}' of a new species of Nais. By H. J. 

 Carter, Esq., H.C.S. Bombay. (With three Plates.) 20 



V. Oq the WinteracecE. By John Miers, F.R.S., F.L.S. he. ... 33 



VI. Note on some specimens of Cyprcea (Cowries) from the Sand- 

 wich Islands. By Dr. J. E. Gray, F.R.S., V.P.Z.S. &c 49 



VII. A Notice of Nature-Printing of Sea-weeds on the Rocks in 



the vicinity of Stromness, Orkney. By Charles William Peach. 50 



'Sew Books : — The Wonders of Geology, by Gideon Algernon Mantell, 

 LL.D. &c. Seventh Edition, revised and augmented by T. R. 

 Jones, F.G.S. — Flore de I'Ouest de la France, by J. Lloyd. — 

 Flore du Centre de la France et du Bassin de la Loire. Third 

 Edition, by A. Boreau 54—59 



Proceedings of the Royal Society; Zoological Society; Geological 



Society; Royal Institution of Great Britain 59 — 80 



Obituarv Notice — Robert Brown, Esq. ; On the .\natomy of Tere- 

 bratula austruUs, by P. Gratiolet ; On the Torpidity of the Mar- 

 mot, by G. Valentin ; Description of Aphroceras, a new genus of 

 Calcareous Sponrjiadfr, by Dr. J. E. Gray, F.R.S. &c. ; On the 

 Hypcrmetamorpbosis and Habits of Sitaris, by M. Fabre ... 80 — 84 



