194. 
Pagb 
<* On the Structural Character of Eock, and on Mineral Deposits, as effected 
by Electricity," by Eobert Hunt, Esq., F.E.S 380 
*' On the Ironstone in the Oolite District of Yorkshire," by the Eev. William 
Thorp, Vicar of Misson 394 
On the Claims of the Gigantic Irish Deer to be considered as Contemporary 
with Man,' by Mr. H. Denny, A.L.S., &c 400 
*' On a New System of Puddling Iron by Steam," by James Nasmyth, Esq., 
C.E., Patricroft 440 
Officers, Council, and Treasurer's Account 445 
On Messrs. Eobinson & Co.'s Smoke Consuming Apparatus," by Mr. Armytage 446 
" Observations on a New Boring Machine for Artesian "Wells and other Pur- 
poses," by E. Carter, Esq., C.E., of Halifax 449 
On the Origin of the Cleveland Hill Ironstone," by H. C. Sorby, Esq., 
F.E.S.,F.G.S 457 
" On the Purification of Lead by Crystallisation," by William Barker, Esq., 
of Sheffield 461 
" On the Eemains of a Primitive People in the South-East Corner of York- 
shii-e ; with some Eemarks on the Early Ethnology of Britain," by 
Thomas Wright, Esq., M.A., F.S.A., &c.. Corresponding Member of 
the Imperial Institute of France 466 
*' On Some Works of Man Associated with the Eemains of Extinct Mammals 
in the Aire Valley Deposit," by Thos. Pridgin Teale, Esq., F.L.S., 
of Leeds 482 
" Notice of the Skull of a Dog Exhumed from the Alluvial Gravel of Norwich 
in 1851," by Mr. H. Denny, A.L.S 538 
" On the Crag Deposit at Bridlington, and the Microscopic Fossils occurring 
in it," by H. C. Sorby, Esq., F.E.S., F.G.S., of Sheffield 559 
" On Colliery Ventilation," by Ed. Carter, Esq., C.E., of Long Carr, Barnsley 562 
On the Mixed use of Davy Lamps and Naked Lights in Coal Mines," by E. 
W. Binney, Esq., F.E.S., F.G.S 577 
** A Sketch of Barnsley, its Mineral and Manufactm-ing Products, and Natural 
History," by Mr. Thomas Lister, of Barnsley 580 
" On an Improvement in Pressure Gauges," by W. H. Bartholomew, Esq., 
C.E., Eesident Engineer, Aire and Calder Navigation 590 
" Observations on the Best Mode of Working and Ventilating Coal Mines," 
by J. Brakenridge, Esq., of Sandal Hall, Wakefield 592 
" On the Eemains of an Ancient Bloomery, at Lochgoilhead, Argyleshire," 
by Mr. Kayle 605 
" An Account of some Experiments with the Steam Jet as a Ventilator for 
Mines," by Mr. F. H. Pearce, C.E., of Bowling, near Bradford 615 
On the Ventilation of Mines," by Mr. J. Jebson, Mining Engineer, Mold 
Green, near Huddersfield 621 
*' On the Alluvial Lands, and Submarine Forests of Lincolnshke," by the 
Eev. Edwai-d TroUope, M.A., F.S.A., &c., of Leasingham 637 
«' On the Lead Mining Districts of Yorkshire," by Stephen Eddy, Esq., of 
Carlton Grange, Skipton 657 
*• On the Yorkshire Flagstones and their Fossils," by Samuel Baines, Esq., 
Holroyd House, Lightcliffe, neai- Halifax 663 
Statement of Accounts 668 
The Structure and Origin of the Millstone-grit of South Yorkshire," by H. 
C. Sorby, Esq., F.E.S., F.G.S., of Sheffield 669 
