CONTENTS. Vll 



Page 

 XLV. Excerpta Botanica, or abridged Extracts translated from 

 the Foreign Journals, illustrative of, or connected with, the Botany of 

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



No. 7. Notes on the genus Corylus. By Ed. Spach 344 



XLVI. The Birds of Ireland (Family /'/•in^riffifte). By Wii. Thomp- 

 son, Esq,, Vice-Pres. Nat. Hist. Society of Belfast. {Continued.) 353 



XLVII. Extracts from a Lecture by M. Dumas on the Chemical 

 Statics of Organized Beings 360 



New Books : — A List of the Genera of Birds, with their Synonyma, 

 and an Indication of the typical Species of each Genus, by George 

 Robert Gray 367 



Proceedings of the Zoological Society ; Royal Society ; Geological So- 

 ciety ; Microscopical Society 376 — 394 



Niger Expedition — Mr. Eraser; Little Auk; New Crustacean Ani- 

 mal ; Mils agrestis ; Disappearance of the Sylvia rubecola in parts 

 of Belgium and Germany ; Chair of Entomology ; Mr. Gould on 

 Menura superba; Anthus Richardi; Obituary — Professor Don, 

 J. E. Bowman, Esq.; Meteorological Obser\-ations and Table 394 — 400 



NUMBER LIII. 



XLVIII. On Epilohium angustifoUum, Linn., and species which have 

 been confounded with it. By W. A. Leighton, Esq., B.A.,F.B.S.E. ... 401 

 XLIX. Remarks on Lottia virginea. By Joshua Alder, Esq. ... 404 



L. The Birds of Ireland (Family Fringillidce, SturnidcE, Corvidte). 

 By Wm. Thompson, Esq., Vice-Pres. Nat. Hist. Society of Belfast. 

 {Continued.) 406 



LI. Descriptions, &rc. of a few rare or undescribed species of British 

 Diptera, principally from the collection of J. C. Dale, Esq., M.A., 

 F.L.S., &c 430 



LII. On Mnium annotinum of Linnaeus. By Edward Forster, Esq., 

 V.P.L.S , 433 



LIII. On Bird-catching Spiders, with remarks on the Communica- 

 tion from W. S. MacLeay, Esq., upon that subject, in the January 



number of the Annals. By W. E. Shuckard, Libr. R.S 435 



LIV. On a new species oi Araucaria from New South Wales; and 



on Nuytsia floribunda. By H. Bidwill, Esq 438 



LV. Information respecting Scientific Travellers : — Some account of 

 the Natural History of the Island of Chedooba, from the Report of 

 Edward P. Halstead, Esq., Commander of Her Majesty's Sloop 



Childers. — Niger Expedition : Dr. Vogel 439 — 445 



New Books : — On the Structure of the Cyst-worm, by George Gul- 

 liver, F.R.S. — Genera Plantarum secundum Ordines Naturales 

 disposita, auctore Stephano Endlicher. — Nomenclator Botanicus, 

 seu Synonymia Plantarum Universalis, auctore E. T. Steudel, M.D. 



