CONTENTS. Vll 



Panp 



XXXV. On the Theory of tht; Fecundation of the Ovum. Hy 



E. CLAl'ARkDE '. ". .390 



XXXVI. Another Note on Scissurella. By S. P. Woodward, 

 F.G.S 401 



XXXVII. On the Occurrence of the Fossil Genus Conoteuthis, 

 D'Orb., in England. By S. P. Woodward, F.G.S 402 



XXXVIII. On the Development of the Freshwater Sponges. By 



N. LlEBERKUHN 403 



XXXIX. On the Development of the Chitons. By Prof. S. Loven. 413 



XL. On Cell-development in Plants. By Prof. Arthur IIenfrey, 

 F.R.S 417 



New Books .• — A Monograph of the British Hieracia, by James Back- 

 house, Jun. — List of British Coleoptera, by J. F. Dawson, LL.B., 

 and Hamlet Clark, M.A 418, 419 



Proceedings of the Royal Society ; Zoological Society ; Linna?an 



Society; Geological Society 420 — 441 



The British Museum — its Catalogues and accessions in Zoology ; On 

 the Development of the Lampreys, by M. Schultze; Note on 

 Clausilia Mortilleti, by Charles Prentice; On a supposed new 

 species of the genus Equus, by M. I. Geoffroy Saint-Hilaire ; 

 Meteorological Observations and Table 44 1 — 448 



NUMBER CII. 



XLI. On the British DiastylidtB. By C. Spence Bate, F.L.S. 

 (With three Plates.) 449 



XLII. Description of a new species of Sphcerium found near Lon- 

 don. By Dr. J. E. Gray. F.R.S., P.B.S. &c 465 



XLIII. Descriptions of eight new species of Birds from South 

 America. By Philip Lutley Sclater, M.A., F.Z.S. &c 466 



XLIV, On Scissurella and Schismope. By J. Gwvn Jeffreys, 

 Esq., F.R.S 4/0 



XLV. On the Orang-Utan or Mias of Borneo. By Alfred 

 R. Wallace 4/1 



XL VI. On Prof. Huxley's attempted Refutation of Cuvier's Laws 

 of Correlation, in the Reconstruction of extinct Vertebrate Forms. 

 Bv H. Falconer, M.D., F.R.S. &c 476 



