191 
Paob 
Observations on the Occurrence of Boulders of Granite, and other Crystal- 
line Rocks, in the Valley of the Calder, near Halifax."' by J. T. Clay, 
Esq ".. 201 
•• Eejjort on the Agricultural Geology of Part of the "Wold District of York- 
shire, and of the Oolite in the Neighbourhood of Xorth and South 
Cave, &c." by the Eev. William Thorp 207 
Eeport of the Council at the Annual Meeting 288 
An Elucidation of the Geometrical Principles of Gothic Architecture," by 
William Wallen, Esq 296 
" On the Preservation of Eailway Sections, and of Accounts of Borings, 
Sinkings, &c." by Thomas Sop with. Esq. 315 
Address of Dr. Walker 333 
Observations on the Yorkshire Drift and Gravel," by J. T. Clay, Esq 338 
" On the Data for a Comparison between the Heat yielded by Coke and 
by Coal," by William West, Esq \ 382 
" On the Use of Wii-e Eope as a Substitute for Hempen Eope on Rail- 
ways and in Mining," by Charles Morton, Esq 390 
" On the Fossil Foot -prints of the Carboniferous System," by William 
Lee, Esq '. 409 
" On the Evidence of the Former Existence of Glaciers in Great Britain," 
by Thomas SopAvith, Esq 41<> 
List of Officers, Members of the Society, 
CONTENTS OF VOLUME II.— 1842-1848. 
" On the Relative Properties of Iron made by the use of Cold and Hot 
Air Blast in the Smelting Furnace," by Henry Hartop, Esq 2 
" On the Molecular Change in the Constitution of Wrought Iron, from 
the Effects of Vibration and Concussion," by Richard Solly, Esq. ... 14 
E«port of Council at tho Annual Meeting 17 
" On the Failure of the Eed and White Clover upon certain Soils," b}^ 
the Eev. William Thorp 21 
Addi-ess of the Chairman 75 
" An Explanation, with Illustrations, of a Practical Method of Detennining 
the QuaHties of Iron and Steel, and the Degrees of Hardness of 
the latter," by the Eev. William Scoresby, D.D., F.E.S., &c 78 
" Experiments made upon Ii-on Manufactured by the Hot and Cold Blast," 
by William Graham, Esq 92 
On Eendering Available for Agricultural Purposes a Variety of Mineral 
Substances and Eefuse from Mines, hitherto considered of no Value," 
by Henry Briggs, Esq « 104 
"On the Reciprocal Propelling Powers of Fluids and certain Rotary Machines 
upon each other," by Benjamin Biram, Esq 116 
" On the Process of Blasting by means of Galvanism," byMartyn J. Roberts, 
Esq.,F.R.S.E.,&c 126 
'• On the Indications which are Guides in Judging of the Fertihtv or BaiTcn- 
ness of the Soil," by the Rev. WilUam Thorp 139 
Report of Council at the Annual Meeting 157 
On a Remarkable Case of the Action of Spi-ing Water on Lead," by Wm. 
West, Esq 162 
