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 
IT. 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 Coccmella from New Zealand. 
By M. Mulsant of Lyon, author of the ‘ Histoire Naturelle des Co- 
leopteres de France.’ Communicated by Adam White, F.L.S 66 
New Boohs : — The History of Barbados, by Sir Robert H. Schom- 
burgk, Ph.D. — Zoological Recreations, by W. J. Broderip, Esq., 
F.ll.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 Phasnomena in the Night-blooming Cereus, 
&c. ; Descriptions of two new species of Planaria, by Joseph 
Leidy, M.D. ; Professor Agassiz ; Meteorological Observations 
and Table 73 — 80 
