IV CONTENTS. 



Page 

 NUMBER VIII. 



VIII. An Account of the Germination of Isoeles lacustris. By 

 Karl Muller. (With two Plates.) 81 



IX. Notice of a deposit of Fossil Diatomacece in Aberdeenshire. By 

 GfiORaE Dickie, M.D., Lecturer on Botany, King's College, Aber- 

 deen 93 



X. Descriptions oi Aphides. By Francis Walker, F.L.S 95 



XI. On the Insects of Jamaica. By Philip Henry Gosse 109 



XII. On some new Fossil Fish of the Carboniferous Period. By 

 Frederick M'Coy, M.G.S. & N.H.S.D. &c 115 



X^II. Dr. Mantell on Mr, Toulmin Smith's "Observations" in 

 Annals of Nat. Hist, for July 1848 133 



Neio Books: — The British Desmidieae, by John Ralfs, M.R.C.S. — 

 .Journals of Travels in Assam, Burma, Bootan, Affganistan, and 

 the neighbouring countries, by the late William Griffith, F.L.S. — 

 Notulae ad Plantas Asiaticas. Part I. Development of Organs in 

 Phanerogamous Plants, by the same. — Icones Plantarum Asiati- 

 carum. Part I., by the same. — The Marine Botanist : an Intro- 

 duction to the study of Algology, containing Descriptions of the 

 commonest British Sea-Weeds, with Figures of the most remark- 

 able Species, by Isabella GifFord 135 — 143 



Proceedings of the Linnaean Society ; Botanical Society of Edin- 

 burgh 143—148 



Apera interrtipta, Beauv., by Ch. C. Babington, M.A.; Orobanclie 

 Picridis, F. W. Schultz, by Ch. C. Babington, M.A.; Descriptions 

 of a Fossil Fish from Australia, and a Belemnite from TieiTa del 

 Fuego, by James D. Dana ; Notes on some Australian Fossils, by 

 J. D. Dana; A new Organ of Sound in Lepidoptera, by S. S. Hal- 

 deman; Meteorological Observations and Table 149 — 152 



NUMBER IX. 



XIV. Some Account of a dioecious Rotifer allied to the genus No- 

 tommata of Ehrenberg. By Thomas Briohtwell, F.L.S. (With a 

 Plate.) 153 



XV. Characters of seven new species of Helix, with amended de- 

 scriptions of some species previously described, and Notes on others 

 requiring remark. By W. H. Benson, Esq., late Bengal Civil Service 158 



XVI. On the form of the Capsule and Seeds as affording a specific 

 character in Prirnula vulgaris (Huds.), P. veris (Linn.), and P. elatior 

 (Jacq.). By the Rev. W. A. Leighton, B.A., F.B.S. E. & L 164 



XVII. Notes, &c. on the genera of Insects Erirhinusj Notaris, and 

 Procas ; with descriptions of two new species. By John Walton, 

 F.L.S 166 



