CONTENTS OF VOL. I. 



[SECOND SERIES."] 



NUMBER I. 



Page 



I. On the Recent British species of the genus Lagena. By W. C. 



Williamson, Esq. (With two Plates.) 1 



II. Note on the genus Cypridina, M. Edwards; with a description 

 of two new species. By W. Baird, M.D., F.L.S. &c. (With two 

 Plates.) 21 



III. Observations on the Development of the Medusce. By John 

 Reid, M.D., Fellow of the Royal College of Physicians of Edinburgh, 

 and Chandos Professor of Anatomy and Medicine in the University of 



St. Andrews. (With two Plates.) 25 



IV. On the Ventriculidce of the Chalk ; their Classification. By 



J. TouLMiN Smith, Esq 36 



V. Reports on the Progress of Physiological Botany. No. 1 . Recent 

 Researches into the Origin and Development of the Vegetable Embryo. 



By Arthur Henfrey, F.L.S. &c 49 



VI. Additions to the Fauna of Ireland. By William Thompson, 

 Esq., Pres. Nat. Hist, and Phil. Society of Belfast 62 



VII. Description of a new species of Coccinella from New Zealand. 

 By M. Mulsant of Lyon, author of the * Histoire Naturelle des Co- 

 l^opteres de France.' Communicated by Adam White, F.L.S 66 



New Books : — The History of Barbados, by Sir Robert H. Schom- 

 burgk, Ph.D. — Zoological Recreations, by W. .J. Broderip, Esq., 

 F.R.S. — An Experimental Inquiry into the Cause of the Ascent 

 and Descent of the Sap, &c., by G. Rainey, M.R.C.S.E 67 — 73 



Extracts from a Letter to Thomas Bell, Esq., F.R.S., from George 

 Clark, Esq., of Mauritius ; Habits of Insects ; Note on the Insects 

 of Madeira ; Curious Phsenomena in the Night- blooming Cereus, 

 &c. ; Descriptions of two nev^r species of Planaria, by Joseph 

 . Leidy, M.D. ; Professor x'Vgassiz ; Meteorological Observations- 

 and Table 73—80 



