CONTENTS. V 



Page 



XXI. Catalogue of Irish Zoophytes. By Arthur Hill Hassall, 

 Esq., M.R.C.S.L. (With Three Plates.) 166 



XXII. A Synopsis of the Genera and Species of the Class Ihjpo- 

 stoma {Asterias, Linnaeus). By John Edward Gray, Esq., F.R.S., 

 Keeper of the Zoological Collection in the British Museum 175 



XXIII. On the true Method of discovering the Natural System in 

 Zoology and Botany. By Hugh E. Strickland, M.A., F.G.S., &c... 184 



XXIV. Catalogue of the Land and Freshwater Mollusca of Ireland. 

 By Wm. Thompson, Vice-President of the Natural History Society of 



Belfast , 194 



XXV. On some Objections to the Theory of attributing the Natural 

 Terraces on the Eildon Hills to the action of water. By J. E. Bow- 

 man, F.L.S. & F.G.S 207 



New Books: — The Flora of Yorkshire, by Henry Baines, Sub-curator 

 to the Yorkshire Philosophical Society. — A Flora of Shropshire, 

 by W. A. Leighton, Esq., B.A., &c. — Tijdschrift voor Natuurlijke 

 Geschiedenis en Physiologie 215 — 219 



Proceedings of the Zoological Society; Linnaean Society 219 — 236 



Note on Mr. Hassall's Catalogue of Irish Zoophytes ; Obituary : Mr. 

 Vigors; Red-breasted Snipe ; Hoopoe, Little Stint; Fossil Fish; 

 Remarks on a specimen of Kingfisher, supposed to form a new 

 Species of the Tanysiptera; Fountain Gum Bottle; C urinaria 

 vilrea, Lamarck; Meteorological Observations and Table... 23G — 240 



NUMBER XXXVII. 

 XXVI. Zoo-Geological Considerations on the Freshwater Mollusca. 



By Edward Forbes, Esq., M.W.S., For Sec. B.S., &c 241 



XXVII. A Catalogue of Shells from the Crag. By S. V. Wood, 

 Esq., F.G.S 243 



XXVIII. Carabideous Insects collected by Mr. Darwin during the 

 Voyage of Her Majesty's Ship Beagle. By G. R. Waterhouse, Esq. 254 



XXIX. Excerpta Botanica, abridged from Foreign Journals. By 

 W. A. Leighton, Esq. B.A., F.B.S.E., &c. 



On the Structure of the Hairs on the Pericarp of certain Plants. 



By M. Decaisne 257 



Conspectus of the Genera and Species of the Lemnacece. By 



M. J. Schleiden 259 



XXX. Contributions to the History of the Development of the De- 

 capod Crustacea. By Heinrich Rathke 263 



XXXT. Report of the Results of Researches in Physiological Botany 

 for 1839. By the late Professor Meyen, of Berlin 269 



XXXII. A Synopsis of the Genera and Species of Starfish. By 

 John Edward Gray, Esq., F.R.S., &c 275 



XXXIII. Some Remarks on the British Species of the Genus 

 Maries. By T. C. Eyton, Esq., F.L.S 290 



