CONTENTS. 
1885, PAGE. 
Address '* On the Work and Progress of the Society." By the Marquis of 
Ripon, KG. (the President) ... ... ... ... 3 
" Notes on the Polyzoa and Foraminifera of the Cambridge Greensand." 
ByGeo. R. Vine ... ... .. .. ... 10 
" On the Origin of the Chalk Dales of Yorkshire." By J. R. Mortimer . 29 
" On the Contortions in the Chalk at Flamborough Head." By James W. 
Davis. (See Photographs) ... ... ... ... 43 
" On some Sections at Cave end Drewton." By Rev. E. M. Cole, M.A. ... 49 
" Note on Spirangium Carbonarium (Schimper)," By Rev. J. Stanley Tute 53 
"Three new Species in the Yorkshire Lias." By W. Y. Veitch... ... 54 
" Analysis of a Hydraulic Limestone Concretion from the Yorkshire Coast, 
with remarks on Concretions generally." By H. B, Stocks ... 56 
" On Ice- grooved Rock Surfaces near Victoria, Vancouver Island : with 
notes on the Glacial Phenomena of the neighbouring region, and on 
the Muir Glacier of Alaska." By G. W. Lamplugh ... ... 57 
'* Notes on the Yoredale Polyzoa of North Lancashire." By G. R. Vine ... 70 
"Note on Chlamydoselachus anguineus, Garman." By Jas. W. Davis ... 98 
" On the Physical Geography and Geology of the East Riding of Yorkshire." 
By Rev. E. M. Cole ... ... .. .. ... ... 113 
" Note on the Parallel Roads of Glen Gloy." By Rev. E. Maule Cole, M.A. 123 
Secretary's Report and Balance Sheet ... ... ... ... 127 
Minutes ... ... ... ... ... ... 132 
Summary of Geological Literature for 1885, with addenda for 1884. By 
J. W. Davis . 136 
List of Members ... ... ... ... ... ... 138 
1886. 
" On some remarkable properties of the characteristic constituents of Steel." 
By H. C. Sorby, L.L.D., &c. ... ... ... ... ... 145 
"On Explosives used in Mining." By Joseph Mitchell, F.G.S. ... ... 147 
"On a Concretion called Acrespire." By H. B, Stocks ... ... 149 
"On the Microscopical Structure of Rocks." By Rev. J. Magens Mello, M.A. 151 
" On Pre-historic Remains recently discovered in Wensleydale." By W. 
Home ... ... ... ... ••• ... 175 
" Notes on the Polyzoa of the Wenlock Shales, &c." By George R. Vine 179 
" On the Relative Age of the Remains of Man in .Yorkshire." By James 
W. Davis, F.S.A. ... ... ... ... .. ... 201 
" Abnormal Barometrical Disturbances in Yorkshire in 1883 and 1884." By 
Richard Reynolds, F.C.S. ... . ... .. ... 214 
" On the Habitation Terraces of the East Riding." By J. R. Mortimer, 
F.G.S 221 
" Notes on the Palasontology of the Wenlock Shales of Shropshire'" By 
Geo. R Vine ... ... ... ... ... ... 224 
" Colliery Explosions and the Weather of 1885." Anon ... ... 248 
" On some remains of Fossil Trees in the Lower Coal Measures at Clayton, 
near Halifax. (Photograph)." By James W. Davis, F.G.S. ... 258 
" Notes on Ancient Coal Mining." By T. W. Embleton, M.E. ... ... 257 
" On the Clayton Gill Beds." By Rev. J. Stanley Tute, B.A. ... ... 265 
" On Safety Lamps." By Prof. Arnold Lupton, C.E., F.G.S. .. ... 268 
"On the Exploration of the Raygill Fissure in Lothersdale." By James 
W. Davis, F.G.S 280 
On the Discovery of a Stone Implement in Alluvial Gra vela at Barnsley." 
By Samuel A. Adamson, F.G.S. .. ... ... 281 
" A Sketch of the Pre- Historic Remains of Rombalds Moor." By John 
Holmes ... ... ... ... -. ... 283 
Secretary's Report and Balance Sheet ... .. .-- ... 316 
Minutes ... ... ... .• .•• ••. ••• 323 
Summary of Geological Literature for 1885-6. By J. W. Davis, ... 328 
List of Members ... ... ... ... ... ••• 330 
