CONTENTS. 



PACK 



Papers : — 



On the Potato as an Article of National Diet; the Potato 



Disease, &c; By J. E. Bicheno, Esq., F.R.S., 



F.L.S., &c 187 



On Docks — Dry, Wet, and Floating. By His Excellency 



Sir W. T. Denison, F.R.S., F.G.S., &c 198 



On the Modes of Shipping Coal at Ports in England. 



By His Excellency Sir W. T. Denison 209 



On the Construction of the Bridge and Causeway across 



the Devwent at Bridgewater. By William Porden 



Kay, Esq., Director of Public Works 214 



On Export and Consumption of Wattle Bark, and the 



Process of Tanning. By J. Mitchell, Esq., D.A.C.G. 219 

 On a Species of Pi-istis Cirrhatus. By J. E. Bicheno, 



Esq.,F.R.S., &c 223 



On Timber-trees of New Zealand. By Capt. Collinson, 



R.E., with notes by Wm. Swainson, Esq., F.R.S., &c. 225 

 On Laap or Lerp, the Cup-like Coverings of Psyllidie 



found on certain Eucalypti, with drawings. By 



Thomas Dobson, Esq., B. A 235 



On a New Species of Manna from New South Wales. 



By Thomas Anderson, Esq., M.D., F.R.SE 241 



On the Coal between Western Port and Cape Liptrap, at 



Port Phillip. By G. H. Wathen, Esq 247 



On the Introduction and Naturalization of Petaurus 



Sciureus in Tasmania. By Ronald C. Gunn, Esq., 



F.L.S., &c 253 



On the Construction of Dams with a View to Irrigation 



in Tasmania, with plates. By His Excellency Sir 



W. T. Denison, F.R.S.,&c 257 



Meteorological Tables (Hobart Town) for 1849, By 



Commander Kay, R.N., F.R.S., Director of the 



Royal Observatory, Hobart Town 255 



Analysis of Tasmanian Coals. By Sir H. De La Beche, 



C.B.,F.R.S., &c 265 



Meteorological Table (Launceston) 1849. By W. R. 



Pugh,Esq.,M.D 266 



Proceedings at Monthly Evening Meetings 267 



Miscellanea: — 



On the Fossil Botany and Zoology of the Rocks associated 

 with the Coal of Australia. By Frederick M'Coy, 

 M.G.S,, and N.H.S.D., &c., with nine plates... 303— 331 



