SUPPLEMENTARY NUMBER. 



CONTEN T S. 



XLVIII. Enumeration of Plants collected by Mr. Schomburgk in 

 British Guiana. By George Bentiiam, Esq., F.L.S (Continued). . 433 



LIX. On the Metamorphoses of the Crustacea. By Capt. C. 

 DuCane, R.N. (With a Plate.) 438 



L. Remarks on the Fumariacece. By George Dickie, Esq., 

 A.L.S., Lecturer on Botany at Aberdeen 440 



BIBLIOGRAPHICAL NOTICES. 



A General Outline of the Animal Kingdom, by Thomas Rymer Jones, 

 F.L.S. , Professor of Comparative Anatomy in King's College. 

 Parts I. to VI 443 



PROCEEDINGS OF LEARNED SOCIETIES. 



Zoological Society : — Observations on some Flying Lemurs, by Mr. 

 Waterhouse ; on the Osteology of the Marsupialia, by Prof. R. 

 Owen ; on two skulls of the full-grown Koala, by Prof. R. 

 Owen 445—454 



Linnsean Society : — Remarks on British Lichens and Fungi, by C. 

 Babington ; on a remarkable Gall, by M. J. Berkeley ; on the deve - 

 lopment of the Theca, and on the Sexes in Mosses, by W. Valen- 

 tine ; Anniversary Address of the President ; on Spongilla fluvia- 

 ilis, with remarks on the Nature of Spongice marines, by J. 

 Hogg 455—461 



MISCELLANEOUS. 



On the Structure of the Volvocince, by Prof. Ehrenberg 461 



Development of the Leguminosce, by Drs. Schleiden and Vogel .... 462 



On the Structure of the Scales of Fish and R-eptiles, by M. Mandl. . 463 



On Lemna arrhiza, by Dr. J. F. Hoffmann ib. 



Discovery of Mummies in Mexico 464 



On the Olfactory Sense of the Antennae, by A. Lefebvre ib. 



On the Geographical Distribution of Palms, by M. von Martius .... 465 



Meteorological Observations and Table. „. 465, 466 



AND FOUR PLATES 



To illustrate various Articles in the Third Volume 





