viii 
Meeting at Halifax, March 3rd, 1841 — Page. 
Address of the Rev. Samuel Sharp 145 
" On the Mineral Springs of the Parish of Halifax, Geologically con- 
sidered," by William Alexander, Esq., M.D 148 
" On the Museum of the Society, and on the various Objects which it is 
desirable that it should contain," by T. W. Embleton, Esq 171 
Meeting at Leeds, June 3rd, 1841 — 
Address of the Rev. Theophilus Barnes 183 
Report of the Council at the Annual Meeting 189 
" Experiments on the Relative Strength of Pig Iron, of various Qualities 
and from different Makers, upon Bars 12 Inches long by 1 Inch 
square," by Mr. Charles Todd 191 
*' On the Presence of Titanium in Blast Furnaces," by Henry Hartop, 
Esq 198 
" On the Occurrence of Shells in the Yorkshire Coal Field," by Henry 
Hartop, Esq 200 
" Observations on the Occurrence of Boulders of Granite, and other 
Crystalline Rocks, in the Valley of the Calder, near Halifax," by 
J. T. Clay, Esq 201 
Meeting at Hull, August 3rd, 1841 — 
" Report on the Agricultural Geology of Part of the Wold District of 
Yorkshire, and of the Oolite in the Neighbourhood of North and 
South Cave, &c.," by the Rev. William Thorp 207 
Meeting at Wakefield, September 23rd, 1841 — 
Report of the Council at the Annual Meeting 288 
" An Elucidation of the Geometrical Principles of Gothic Architecture," 
by William W^allen, Esq 296 
*' On the Preservation of Railway Sections, and of Accounts of Borings, 
Sinkings, &c.," by Thomas Sopwith, Esq 315 
Meeting at Huddersfield, December 2nd, 1841 — 
Address of Dr. Walker 333 
" Observations on the Yorkshire Drift and Gravel," by J. T. Clay, Esq. 338 
" An Elucidation of the Geometrical Principles of Gothic Architecture," 
by William Wallen, Esq., (Second Paper) 352 
" On the Data for a Comparison between the Heat yielded by Coke and 
by Coal," by William West, Esq 382 
Meeting at Sheffield, March 3rd, 1842 — 
*' On the Use of Wire Rope as a Substitute for Hempen Rope 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 Sopwith, Esq 419 
List of Officers, Members of the Society &c. 
