VI CONTENTS. 



Page 



XXVIII. On the Mechanism of Aquatic Respiration and on tlie 

 Structure of the Organs of Breathing in Invertebrate Animals. By 

 Thomas Williams, M.D. Lond. (With two Plates.) 294 



XXIX. Contributions to the Palaeontology of Gloucestershire : — A 

 description, with Figures, of some new Species of Echinodermata 

 from the Lias and Oolites. By Thomas Wright, M.D. &c 312 



New Books : — Botanical Letters to a Friend, by Dr. F. Unger. — Sy- 

 nopsis des Calopterygines, par M. E. de Selys-Longchamps. 324 — 327 



Proceedings of the Royal Institution ; Zoological Society ; Botanical 



Society of Edinburgh 327—344 



Note on the Vegetation of Mount Argaeus in Cappadocia, by M. P. 

 de Tchihatcheflf; On certain Statements contained in Dr. T. Wil- 

 liams's papers on the Respiratory Organs of the Articulata, by 

 George Newport, F.R.S. ; On the genera Volutella and Cymbiola, 

 by Dr. J. E. Gray; Observations on Notamia bur sarin, by G. H. 

 Kingsley, M.D. ; Description of a new species of Helix from Van 

 Diemen's I-and, by Lovell Reeve, F.L.S. &c. ; On the Colours 

 of Plants, by M. Martens; Meteorological Observations and 

 Table 344—352 



NUMBER LXXVII. 



XXX. A Synopsis of the Fissirostral family BMCcomrfee. By Philip 



LUTLKY SCLATER, M.A., F.Z.S 353 



XXXI. Observations on the Fauna of Barrackpoore. By Capt. 

 Robert C. Tytler, of the 38th Regiment Bengal Light Infantry... 365 



XXXII. Contributions to the Palaeontology of Gloucestershire : — 

 A description, with Figures, of some new species of Echinodermata 

 from the Lias and Oolites. By Thomas Wright, M.D. &c 376 



XXXIII. Observations on " Prof. Sedgwick's Reply to some State- 

 ments reflecting on the University of Cambridge." By J. S. Bower- 

 bank, F.R.S 384 



XXXIV. Monograph of the British Graphidece. By the Rev. W. 



A. Leighton, B.A., F.B.S.E 387 



XXXV. Notices of British Fungi. By the Rev. M. J. Berkeley, 

 M.A., F.L.S., and C. E. Broome, Esq. (With two Plates.) 396 



XXXVI. Descriptions of new species of Ceylon Reptiles. By 



Dr. Kelaart 407 



XXXVII. A Revision of the Arrangement of the Families of 

 Bivalve Shells (Conchifera). By John Edw^ard Gray, Ph.D., 

 F.R.S., V.P.Z.S. &c ^ 408 



