CONTENTS OF VOL. X. 



NUMBER LXII. 



Page 



I. Description of two new species of Kangaroos from Western Au- 

 stralia. By John Gould, Esq., F.L.S., &c 1 



II. Contributions to Structural Botany. By W. Hughes Willshire, 

 M.D., M.B.S., Lecturer on Botany at Charing Cross Hospital 3 



III. Note on the appearance of Clouds of Diptera. By Robert Pat- 

 terson, Esq., Member of the Nat. Hist. Soc. Belfast, &c 6 



IV. On the spongeous origin of Moss Agates and other siliceous 

 bodies. By J. S. Bowerbank, Esq., F.G.S., &c. (With three Plates.) 9 



V. Note of species obtained by deep dredging near Sana Is'^nd, off 

 the Mull of Cantire. By George C. Hyndman, Esq IT 



VI. Results of deep dredging off the Mull of Galloway, by Captain 

 Beechey, R.N. Drawn up by Wm. Thompson, Esq., Vice-Pres. Nat. 

 Hist. Society of Belfast 21 



VII. On a new British species of Alchemilla. By Charles C. Ba- 

 bington, M.A., F.L.S., F.G.S., &c 24 



VIII. Contributions to the Ichthyology of Australia. By John 

 Richardson, M.D., F.R.S., &c, Inspector of Hospitals, Haslar. (Con- 

 tinued.) 25 



IX. Observations on the genera Zygnema, Tyndaridea, and Mou- 

 geotia, with descriptions of new Species. By Arthur Hill Hassall, 

 Esq., M.R.C.S.L., Corresponding Member of the Dublin Natural Hi- 

 story Society 34 



X. Excerpta Zoologica, or abridged Extracts from Foreign Journals. 



By Dr. Felix von B^erensprung 47 



XI. The Birds of Ireland. By Wm. Thompson, Esq., Vice-Pres. 

 Nat. Hist. Society of Belfast. (Continued.) , 50 



XII. Information respecting Scientific Travellers 59 



New Books; — Ninth Annual Report of the Royal Cornwall Polytechnic 



Society 60 



Proceedings of the Royal Academy of Sciences of Berlin ; Microscopical 

 Society ; Entomological Society ; Botanical Society of London ; 

 American Philosophical Society 61 — 73 



