CONTENTS. V 



Page 



XX. On the Genus Lycium. By John Miers, Esq., F.R.S., 

 F.L.S. &c 182 



XXI. Rejoinder to Professor Milne-Edwards and Mr. Bowerbank. 



By Professor Sedgwick 195 



XXII. Notice of a new species of Caulerpa, By R. K. Greville, 

 LL.D. &c. (With a Plate.) 197 



Neuo Books : — Geodephaga Britannica, by J. F. Dawson.— The Medals 

 of Creation, &c., by (the late) G. A. Mantell, F.R.S.— Genera 

 Plantarum Florae Germanicae iconibus et descriptionibus illus- 

 trata, Auctore R. Caspary. — The Microscope and its application 

 to Clinical Medicine, by Lionel Beale, M.D. — The Microscope ; 

 its History, Construction, and Applications, by Jabez Hogg, 

 M.R.C.S 198—205 



Proceedings of the Royal Society ; Zoological Society ; Botanical 



Society of Edinbu rgh ; Linnsean Society 205 — 234 



On the Development of Coenurus cerebralis, by Prof. Van Beneden j 

 On the Capture of Thecacera pennigera, by William Thompson ; 

 Note on Athyrium rhceticum, by S. O. Gray; On the occurrence 

 of Larvae of Sarcophaga in the Human Eye and Nose, by Dr. E. 

 Grube; Meteorological Observations and Table 234 — 240 



^ -^^^ NUMBER LXXXIL 



XXIII. On the Mechanism of Aquatic Respiration and on the 

 Structure of the Organs of Breathing in Invertebrate Animals. By 

 Thomas Williams, M.D. Lond. (With three Plates.) 241 



XXIV. On the Remains of a gigantic Bird {Lithornis Emuinus) 

 from the London Clay of Sheppey. By J. S. Bowerbank, F.R.S. &c. 263 



XXV. Notes on the Ornithology of Ceylon, collected during an 

 eight years' residence in the Island. By Edgar Leopold Layard, 

 F.Z.S., C.M.E.S. &c 264 



XXVI. On the Fertilization of Ferns. By W. Hofmeister 272 



XXVII. Upon a new species of " Alpheus " discovered upon the 

 coast of " Herm " (Channel Islands). By W. V. Guise, Esq., F.G.S. 275 



XXVIII. Descriptions of three new species of British Actinice. By 

 Philip H. Gosse, A.L.S 280 



IVew Books : — The Ferns of Great Britain. Illustrated by John E. 



Sowerby. The Descriptions, Synonyms, &c. by C. Johnson ... 284 



Proceedings of the Royal Society ; Zoological Society ; Linnasan 



Society ; Botanical Society of Edinburgh 285 — 31 5 



