IV CONTENTS. 



Portrait of Dr. Johnston ; On the Occurrence of some new species of 

 Pollicipes in the Inferior Oolite and Lias of Gloucestershire, by 

 the Rev. P. B. Brodie, M.A., F.G.S.; Mr. Yarrell's Collections"; 

 On the Stereognathus Ooliticus from the Stonesfield Slate, by 

 Prof.Owen,F.R.S.,F.G.S.; l^ote on Estheria minuta, hyT.Un^eit 

 Jones, Assist. Sec. G.S. ; On the genus Cuma, by C. Spence Bate, 

 F.L.S. ; Rare British Birds, by W. P. Cocks ; Note on Zootoca 

 vivipara var. nigra, by Dr. J. E. Gray ; On a new Turkey, Mele- 

 agris mexicana, by J. Gould, F.R.S.; Description of anew Trogon 

 and a new Odontophorus, by J. Gould, F.R.S. ; Meteorological 

 Observations and Table 102 — 112 



NUMBER OX. 



IX. On the Organization of the Infusoria, especially the VorticellcB. 



By Dr. C. F. J. Lachmann. (With a Plate.) 113 



X. New British Lichens. By the Rev. W. A. Leighton, B.A., 

 F.B.S.E. (With a Plate.) 129 



XI. On the so-called " Water- vascular System." By Thomas 

 Williams, M.D., F.L.S., Physician to the Swansea Infirmary 133 



XII. A Synopsis of the British EdriophthalmoUs Crustacea. Part I. 

 Amphipoda. By C. Spence Bate, F.L.S. &c. 135 



XIII. List of Coleoptera received from Old Calabar, on the West 

 Coast of Africa. Parti. By Andrevst Murray, Edinburgh 153 



XIV. Researches on the Development of the Myriapoda. By M. 

 Pabre 162 



New Books : — Elementary Course of Geology, Mineralogy, and Phy- 

 sical Geography, by Prof. D. T. Ansted, M.A., F.R.S. &c 166 



Proceedings of the Zoological Society J Geological Society 168 — 187 



Observations on the Organization and Reproduction of the Volvocineoe, 

 by F. Cohn ; List of Phsenogamous Plants collected by Dr. E. K. 

 Kane on the Western Coast of Greenland ; Remarks on young 

 Bony Pikes {Lepidosteus), by Prof. Agassiz ; Meteorological 

 Observations and Table 187—192 



NUMBER CXI. 



XV. On the Mechanistii of Aquatic Respiration and on the Struc- 

 ture of the Organs of Breathing in Invertebrated Animals. By Tho« 

 MAS Williams, M.D., F.L.S. (With a Plate.) 193 



