INDEX TO VOLUME XXV

Accounts : 1941, 129; 1942, 135; BARKER, W. R.—continued. 1943, 221; 1944, 332; 1945, 446. Nostell, near Wakefield, 175; on Adelphoceras, 389; meslerianum, 389. Coal Measure plants from Brick• Adelphoceratidae, 391. yard Quarry, Nostell, Yorkshire, Adiantites, 168. 176. Alethopteris lonchitica, 182, 361. B[ARKER], W. R., on Nostell Colliery, A llotropiophyllum, 118. 131. Alport, boring, 144, 254; Crowstones, Barnoldswick, 398; Fault, 190. 147; Dale, 142, 255, 437; dome, Basin sedimentation, 296. 143; Limestones, 256, 296; Lime- Bath, geological map, by William stone-with-Shales, 256; River, 143; Smith, 25. Shales, 147, 256. Baylei zone, 351. Ammonites, , 339; zonal, Beedale, 342, 347. 339. Belbin, Henry Laurence, in mem., Amoeboceras, 349; ilovaiskyi nom. 134. nov., 350. Beyrichoceras, 280, 390; age, 280; Amplexus, 197, 206. delicatum subzone, 284; hodder- Andesite erratic, 234. ense band, 297; hodderense zone, Ankerite in coal, 131. 281; zones, 280. Annual reports : 1941, 127; 1942, Beyrichoceratids, 390. 130. Beyrichoceratoides, 280, 390. Annularia, 183. Bibliography, supplementary, works Anthracoceras, 161, 381, 392; faunal by or relating to William Smith, phase, 151. 90; Yorkshire geology 1938-1940, Anthracomya bellula, 139. 215, 248; Yorkshire geology 1941 Anthraconatita, 185. to 1943, 249. Appleton-le-Street, 342, 347. Binary nomenclature of fossils, 103. Arachniophyllum, 197. Biotite, 366; analyses, 369; exfolia• ARKELL, W. J., on the zones of the tion, 368. Upper Jurassic of Yorkshire, 339. Birdsall, 342, 347, 354. Arley Mine, Burnley, 360. Blackburn, 323. Am Gill, Wensleydale, 101. Black Hall, Craven, 395. Arnsbergian, 56, 152, 333, 375. Bleaklow Hill, 143. Ashop, R., 143. Blindstone Mine, Burnley, 361. Aspidoceras, 345. DE BOER, G., on a system of glacier Astbury, Anticline, 320. lakes in the Yorkshire Wolds, Asterocalamites, 263. 223. Asterophyllites, 180, 362. Bollandian, 258, 401; zonal division, Asterotheca miltoni, 182. 258, 274. Athleta zone, 344, 354. Bolton Abbey, 420. Aulacostephanus, 343. Borrowdale erratic, 234. Bothrodendron, 183. Boulder clay, purple, 224; drab, 231. Back-reef facies, 306. Boulders, limestone, 133, 205; Bakewell, Derbyshire, 263. quartzite, in coal seams, 140. Balance Sheets : 1941, 129; 1942, Bowland Shales, 136, 260, 403. 135; 1943, 221; 1944, 332; 1945, Bracewell Fault, Broughton, 190. 446. Brachiopods, Dinantian, 195, 202; Ball beds, Jurassic, 342, 346. Middle Visean, 281, 290. Banks, Sir Joseph, 15. Breccias, limestone, 239, 264. BARKER, W. R. (and W. L. Whittle) Bridlington, overflow at, 229. on the Coal Measure strata of Brockindale Brook, Hognaston, 429. 448 PROC. YORKS. GEOL. SOC. XXV

Broughton, Anticline, 132, 190; Claviphyllum—continued. Beck, 191; Beds, 198; Fault, 190; 112; genotype, 110; hillae, n. sp., Fields quarry, 197, 200; quarry, ontogeny and phylogeny, 114; 133, 205. micromorphic forms, 113, 116; Brows Hill quarry, 133, 200. septal plan, 110. Bryozoa, Visean, 281. Clifford, glacial clay at, 238. Bukowski zone, 346, 354. Clints Delf, Broughton, 133, 193; Burnley Coalfield, 359. Rock, 202. Burst Clough, Pendle, 402. Clitheroe, Anticline, 190; Limestone, Butterhaw, Limestone, 199, 204; 193. quarry, 133, 193; Shales-with- Coal Measure, Flora G, 132, 185; Limestone, 199. plant distribution, 186; plants, Butterton inlier, 321. 176; sedimentation, 176; strata, Butts Quarry, Hunmanby, 225. 175, 359. Cock Bridge, Sabden, 137. Cadoceras, 340, 341. Cockden Bridge, 360. Calamites, 131, 183, 362. Conglomerate, Caldon Low, 327; Calamostachys, 181. limestone, 239. Calcareous Grit, 342, 354. Coniston Cold Fault, 190. Calcite-mudstones, 257. Constrictions, goniatite, 393. Caldon Low conglomerate, 327. Coral, Middle Visean, faunas, 281; Callovian, 340, 354. phylogeny, 101; Scottish, 101; Calloviense zone, 340. structure, 105; Yoredale, fauna, Calton Limestones, 327. 101. Campylites, 346. Coral-brachiopod faunas, 281. Caney Shale, U.S.A., 390, 405, 430. Cordaianthus,flagellibracteatus n. sp., Caninia, 133, 197, 201, 206, 327; 178; nostellensis n. sp., 179. phase faunas, 281. Cordaicarpus, 181. Caninophyllum, 201, 281, 327. Cordailes, 131, 184. Cannel Mine, Burnley, 360. Cordatus zone, 342, 346, 354. Carbonicola, crista-galli, 359; ovalis, Cornbrash, 340. 359; pseudorobusta, 359, 362; sub- Coronatum zone, 341. constricta, 259. Costicardia zone, 346, 354. Carcinopkyllum, 121. Cottage Crescent, Bath, residence of Cardioceras, 342, 345, 346. William Smith, 73. Cardiopterium, 168, 261. COTTON, G., see R. G. S. Hudson, Carey, John, and William Smith, 44. Cow Close Sike, Malham, 424. Carla Beck, Skipton, 419. Cowdale (Higher) Clough, 398. Carleton-in-Craven, 419; syncline, Cowlow, Castleton, 305. 190. Cox, L. R., on new light on William Carpolithus, 181, 185. Smith and his work, 1. Castle Howard, 342. Craike Hill, 226. Castleton shell-reef limestones, 305. Craven, South, Faults, 190; Low• Cautisnigrae zone, 348. lands, 191; reef-belt, 300. Central Province, , Cravenia, 206, 327. 145, 278. Cravenoceras, africanum, 337; cow- Centrocellulosum, 109; diagnosis, 108; lingense, 162, 336, 381; darwenense, genotype, 108. n. sp., 333; hesperium, 336; Chalky Boulder Clay, 236. holmesi, 320, 375; leion, 169, 321, Channels, overflow, 223. 336, 421; malhamense, 136, 167, Chee Tor Beds, 307. 336; 'inevadense, 336; petrenkoi, Cherry Burton, 228. 336; richardsonianum, 336; roe- Chonetipustula, 290, 325; Beds, 292. meri, 337; simplex, 337; subplica- Churnet Shales, 147, 320, 437. tum, 320, 336, 384. Cinder Hole, overflow channel at, Cravenoceratoides, bisati, and diag• 226. nosis and subzone, 375, 376; Clark, James Edmund, in mem., 331. diagnosis, 376; edalensis, 162, 379; Claviphyllum, 281; diagnosis, 110; fragilis, 161, 320, 376; genotype, eruca, ontogeny and phylogeny, 376; lirifer n. sp., and diagnosis, INDEX VOL. XXV 449

Cravenoceratoides—continued. Edale, Anticline, 142; boring, 279; 320, 380; nitidus, and zone and shale fauna, 150; Shales, 143, 312, subzone, 162, 375, 383; nititoides, 437. 161, 383; stellarum, and subzone, Elbolton reef limestone, 304. 162, 375, 380. Embsay Limestone, 196, 210, 239. Crawshay, Richard, and William Emmonsia, 206, 279, 322. Smith, 15. Erratics, glacial, 230, 234. Creniceras, 345. Escrick, glacial clay at, 238. Crinoids, Carboniferous, 133, 203. Estuarine clay, Kirmington, 237. Croasdale Beck, Slaidburn, 418. Eumorphoceras, aff. 5". costatum, 418; Crossgates quarry, Seamer, 343, 348. age, 151, 320, 375; angustum n. sp., Crossotheca, 180. 424; bisulcatum, 161, 333, 393, 430, Crowstones, 147, 320. and varieties, 162, 393, 430; dis• Cryptophyllum, 206. tribution, 260, 439; genotype, 417; Cyathoclisia, 195, 281; beds, 194. genus, 417; ornatum, 153, 438; Cyathaxonia, 101, 196, 206, 281; beds, proteum, 158, 434; pseudobilingue, 292; cornu var. erecta nov., 120; 166, 426; relationship, 393, 438; phase faunas, 281, 296, 325. sp. form A, 418; sp. form B, 419; Cymodoce zone, 351. sp. form C, 429; stubblefieldi, 420; tornquisti, 418, 422. Dandy Mine Rock, Burnley, 360. Eurymnoceras, 342. Danesdale, col, 223; glacial channel, 225. Farey, John, and William Smith, 38. Darwen, R., 333, 430, 437. Fasciculophyllum, 195, 206, 281, 327; Davidsonina, [Cyrtina] carbonaria, ambiguum, 106; diagnosis, 105; 282, 325; Beds, 293. genotype, 105; omaliusi group, D[AVIES], W., on the Don and Little 104; thomsoni n. sp., 105. Don, 128. Faults, South Craven, 190. Daviesiella, 202, 281; Beds, 307. Fence End quarry, 133. DAVIS, A. G., on micro-organisms in Field meeting reports : Broughton the Carboniferous of the Alport Anticline, 132; Don and Little Don, boring, 312. 128; Nostell Colliery, 131. Decipia, 343. Filey, 346, 352; Brigg, 343. Decipiens zone, 349. Five Yards Limestone, 101. Decomposition, biotite, 370; granite, Flamborough gravel mounds, 225. 367; in peat, 370. Flora G, Coal Measure, 185. Derbyshire, massif, 142, 295; reef Foraminifera, Visean, 312. belt, 300. Fox, THELMA, see R. G. S. Hudson. Diaries, William Smith's, 4. Foynes Island, Ireland, 437. Dibunophylhim, 122, 282; zones, 279, Fulledge, Colliery, Burnley, 359; 282. Thin Mine, 360; Trough Faults, Dimorphoceras, 136, 154, 260; faunal 362. phase, 151, 163. Dinantian, Alport, 256. Gargrave Fault, 190. Dinckley Ferry, Lanes., 405. Garton, glacial lake at, 225. Diplotmena, 178, 363. Gastrioceras cumbriense, 138. Dolomite-mudstones, 270. Gigas zone, 353. Don R., 128. Girtyoceras, brainerdi, 415; bruning- Dovedale shell-reef limestone, 326. ianum, 321, 407, 410; burhenni, Drab Clay, 231, 236. 410; complicatum, 402; costatum, Drewton, 342. 261, 420; cowdalense n. sp., 406; Drift shells, reef limestone, 296. deani, n. sp., 399; discus, 397; DUNNINGTON, H. V., on contem• distribution, 439; genotype, 397; poraneous slumping in the Embsay genus, 390; leviculatus, 412; Limestone series of the Skipton limatum, 412; meslerianum, 405; anticline, 239. multicameratuni, n. sp., 411; platyforme, n. sp., 403; premes- Ecton, Anticline, 322; Limestones, lerianum, n. sp., 401; relationship, 324. 260, 388, 393, 395, 438; shorrocksi, 450 PROC. YORKS. GEOL. SOC. XXV

Girtyoceras—continued. Hesslewood, glacial clay at, 236. n. sp., 413; simplex, n. sp., 400; Heterophyllia, 121, 281." sp. form H, 403; sp. form /, 403; Higher (Cowdale) Clough, 398. sp. form K, 408; sp. form L, 407; High Green Wood, 395. sp. form M, 417; waitei n. sp., 415; High Hutton, 342, 345. weetsense, n. sp., 408. High Littleton, 6. Girtyoceratinae, 393, 438. Hildenley brickyard, 343. Girvanella band, 307. Hill Cloughs, Barnoldswick, 415. Givendale, Allerston, 346. Hippings Lane quarry, 303. Glacial, clays, 236; erratics, 230; Hodder, R., 296. lakes, 223; overflow channels, 223. HODSON, FRANK, on marine bands in Goathland, 234. the Millstone Grit east of Whalley, Goethite, 368. Lancashire, 136; on the correlation Goliathiceras, 345. of the Middle Coal Measures of the Goniatite, 136, 333, 375, 388; faunal Burnley coalfield with those of phase, 151, 280; structure, 334, south Lancashire, 359. 376, 388; suture, 334, 388; trans• Holderness, glacial clays of, 236. verse section, 334, 377, 401. Holkham sheepshearing, 36. Goniatities, calyx, 395; crenistria Holme Dale glacial channel, 226. zone, 270, 322; dinckleyensis, 322; Holothurian spicules, 317. elegans subzone, 267; falcatus, 268, Holywell, Shales, 437; Bridge 321; falcatus subzone, 268; foram- (Skipton), 195. inosus, 437; granosus subzone, Homoceras, 391; Age, 151, 320; 261; granosus (P2) zone, 260, 321; beyrichianum, 158; calyx, 395; hudsoni, 280, 398; koboldi sub- eostriolatum, 158; genotype, 395; zone, 266; maximus zone, 280, 398; henkei, 156; proteum, 434; re• mucronatus, 268; platylobus, 396; lationship, 395; smithi, 159, 397, proteus, 434; sphaericostriatus zone, 437; spiraloides, 154; striolatum, 264, 323; spiraloides, 268. 136, 153; subglobosum, 159. Goniatitidae, 391. Homoceratinae, 391. Goniatitinae, 393. Hope boring, 330. Gonioglyphioceras, 391. Hornsea, glacial clay at, 236. Gonioloboceras, 391. Howardian Hills, 354. Goodmanham, hanging valley at, Howchinia bradyana, 317. 226. Howedale, overflow at, 229. Goyt Syncline, 320. HUDSON, R. G. S. (and Thelma Fox) Granite, Shap, 366. on an Upper Visean zaphrentoid Gravel, 224. fauna from the Yoredale beds of Gravesia, 343, 353. north-west Yorkshire, 101; (and Gravesiana zone, 353. G. Cotton) on the Namurian of Great Driffield, 223. Alport Dale, Derbyshire, 142; on Great Scar facies, 300. the Carboniferous of the Brough- Great Wold Valley, 223. ton anticline, Yorkshire, 190; Grindslow Shales, 143. bibliography of Yorkshire geology, Guliehnites, 344. 1938-1940, 215; bibliography of Gun Hill, boring, 278, 318; Sand• Yorkshire geology, 1941 to 1943, stone, 320. with additions to that of 1939 to 1940, 248; (and G. Cotton) on the Hackness Rock, 342. Lower Carboniferous in a boring Halton East quarries, 197. at Alport, Derbyshire, 254; on Halton Shales-with-Limestone, 196, the upper Visean and lower 210. Namurian of north Staffordshire, Hambleton Oolite, 347, 354. 318; on the Namurian goniatites Haw Bank Beds, 194; Limestone, Cravenoceratoides bisati Hudson 195; quarry, 195. and Ct. Urifer n. sp., 375. Heasandford brick-pit, 361. H[UDSON], R. G. S., on the Brough- Heatherstag Hill, 224. ton anticline, 132; in mem. James Hecticoceras, 345. Edmund Clark, 331; in mem. Eric Hessle Clay, 223, 236. Schofield, 373. INDEX VOL. XXV 451

Hudsonoceras gen. nov., diagnosis, Little Mearley Clough, 403. 433; foraminosum, 437; genotype, Lob Mill, Todmorden, 434. 433; lineolatum, 438; nodomargina- Longnor Sandstone, 320. tum, 438; ornatum, 438; pingue, Longstone Beds, 279, 307. 438; proteum, 434; proteum var., Low Bottom Mine, Burnley, 362. 437; relationship, 393, 438. Lowdales, 347. Hugill Dale, overflow channel, 226. Lower Yard Mine, Burnley, 362. Hunmanby, 223; Dale, 225; Lake, Lydistratites, 353. 224. Hutton Bushel, 347. Macrocephalites, 342. Huttons Ambo, 342. Macrocephalus zone, 340. Hyalostelia, 260. Main Wold Valley, 225. Hydrobiotite, analysis, 369. Malham, 278, 304, 424. Hypersthene andesite erratic, 235. Malton, 341, 343; Oolite, 343. Mam Tor, 437; Sandstones, 143. Irrigation, treatise on, by William Manchester Coal Measures, 364. Smith, 21. Manifold, R., 322; Limestones-with- Shales, 327. Jason zone, 341. Mariae zone, 345. Jonesina arcuata, 362. Marine bands, Millstone Grit, 136, Jurassic, palaeogeography, 355; of 149. Russia, 355; zones, Yorkshire, 339. Mariopteris, 182, 362. Market Weighton, overflow channel, Keal Hill, Burnsall, 389. 226. Kellaways, Rock, 340; Sandstone, Marsdenian, 437. 340. Marton, Sinnington, 343, 352. Kepplerites, 340. Marton Scars, 202. Kilham Lane, channel, 228; col, 223. Massif (limestone) facies, 306. Kimeridge Clay, 343, 352. Mearley Clough, Pendle 403 Kimeridgian, 343, 351, 354. MELMORE, SIDNEY, on the presence Kinderscout Grit, 137, 143; Syncline, of sodium chloride in certain 143. glacial clays in Holderness, 236. Kinderscoutian, 152, 438. Merocanites, 280. King Mine, Burnley, 360. Michelinia, 200, 206, 281. Kirkdale, 349. Micklethorn quarry, 200. Kirmington, glacials, 231. Micromorphic corals, 113, 116. Knockindown Farm, Hognaston, 429. Middle Limestone, Yoredales, 101. Knowle Top, Pendle, 407. Middleton Dale, 279, 330. Koenigi zone, 340. Middleton-on-the-Wolds, glacial lake Koninckophyllum, 122, 206. at, 226. Kosmoceras, 341. Midland embayment, Carboniferous, 295. Lakes, glacial, 223. Milleroceras, 391. Lamberti zone, 344. Millers Dale beds, 307. Lamellibranchs, Namurian, 153; Millstone Grit, 136, 143. Visean, 260. Mixon, inlier, 298; Limestones, 147, Laminated clay, 224. 298, 318, 324; Limestones and Langerton Hill, Burnsall, 303. Shales, 147, 298, 318, 321. Lapelli, tuff, 272. Monsal Dale Beds, 279, 307. Lepidodendron, 183, 362. MOORE, E. W. J. on an upper Car• Lepidostrobus, 362. boniferous goniatite, Cravenoceras Lime Seam, Burnley, 140. darwenense sp. nov., from the Limestone, boulders, 205; dolomitic, Sabden Shales of Lancashire, 333; 257; fauna, 198; slumping, 239; on the Carboniferous goniatite tuffaceous, 257. genera Girtyoceras and Eumorph- Lingula, 132, 176. oceras, 387. Lithostrotion, 281; arachnoideum Morredge Grits, 147, 320. fauna, 297; — clisiophyllum faunal Mudstones, Carboniferous, 148. phase, 282; minus (S2) zone, 291. Mutabilis zone, 352, 452 PROC. YORKS. GEOL. SOC. XXV

Muston, 224. Pendleside Limestone, 296; facies, Myriophyllites, 185. 300. Perisphinctes, 343, 348. Naiadites, 360. Permia, 206, 281. Namurian, 142, 333; goniatites, 375, PHEMISTER, J., note on an erratic 388; horizon of base, 169; sedi• block at Randy Mere, near Goath- mentation, 148; zonal succession, land, Yorkshire, 234. 170; zones, 153. Phillibole, 293. Nappa, Limestone, 208; Shales-with- Phillips, John, 9. Limestone, 208. Pickering, 343; Lake, 224. Neodimorphoceras, 167, 333. Pictonia, 343, 351. Neuropteris, 131, 161, 182, 362. Pindale, Castleton, 307. New Field Edge, Barnoldswick, 399. Pinnularia 131, 185. New Malton, 351. Plants, Coal Measure, 131, 176, 362; Newboro' Cottage, Scarborough, South Wales, 186. residence of William Smith, 80. Plate-with-girdles, 101. Nomismoceras, 288, 324; beds, 270; Platycone goniatite, 389. omatum, 437. Plexus, discussion on, 102. Norfolk, description bv William Plicatifera, 202, 281, 327. Smith, 22. Plicatilis zone, 347, 354. North Grimston, 352. Poikilitic texture, 168, 272. Nostell Colliery, 131, 140, 175; Porphyritic andesite erratic, 234. Brickyard quarry, 131, 176. Posidonia, 145, 260, 267. Nuculoceras, nuculum, 160, 320, 333, Poyllvaaish reef limestones, 302. 375, 430; subzone, 161; zone, 160, Praecordatum zone, 345. 333, 430. Preface, uncompleted, to Natural Nunlow beds, 279. order of Strata by William Smith, 81. Prestatyn, shell reef, 300. , 346. Priestcliffe Beds, 279, 307. Odin fissure, Castleton, 305. Priory Seam, Burnley, 140. Olivers Mount, 342, 345. Prolecanites Beds, 285. Onecote Sandstones, 321. Proplanulites, 341. Orbiculoidea, 132, 176. Prorasenia, 351. Osmington Oolite, 348. Pseudocadoceras, 341. Overflow channels, 223. Pseudochaetetes [Solenopora], 195. Oxford Clay, 341. Pseudocordata zone, 350. , 342, 345. Pseudomutabilis zone, 352. Oxycone, goniatite, 389. Pseudopeltoceras, 344. Pule Hill, Marsden, 437. Pachycardioceras, 345. Pustula, 202, 281. Palaeacis, 206. Pyrites, in shale, 149. Palaeogeography, Middle Visean, 309. Palaeosmilia, 206, 282; fauna, 197; Quartzite boulders, 140. murchisoni (Dt) zone, 283. Quenstedtoceras, 342, 345. Palaeostachya, 184. Paragoniatites, 260; newsomi, 261; subcircularis subzone, 261. Radiolaria, Namurian, 312. Parsonage Sandstone, 137, 333. Rain Hall quarry, 211. Passage Beds, Oxfordian, 346. Randy Mere, erratic at, 234. Pavlovia, 343. Rasenia, 343. Pavloviceras, 345. Red Rab [Old Red Sandstone], 29. Pebble-earth, 224. Redcliff, boulder clay, 236. Peckondale Hill, 341. Redland [Magnesian] Limestone, 29. Pectinatites, 343. Reef-limestone, 326; facies, Derby• Peltoceras, 342, 344. shire and Craven, 300; fauna, 282; Pendle, 278; Top Grit, 136. goniatite succession, 301. Pendleian, 152, 420. Resin layers in coal, 131. INDEX VOL. XXV 453

Reticuloceras, 391, 393; Age, 151, Sigaloceras, 340, 342. 320; co-reticulatum, 137, 153; Siltstones, Carboniferous, 149. dubium, 153; gracile, 137; incons- Six Inch Mine, Burnley, 302. tans, 153; moorei, 137; nodosum, Skibeden Shales-with-Limestone, 198, 153; reticulatum, 153; stubble- 207. fieldi, 155; todmordenense, 153. Skipton, Anticline, 190, 239; Bol- Revidge Grit, 137. landian, 278; Castle Limestone, Rhenish Schiefergebirges, 274. 195; Castle Limestone-with-Shales, Rhodea, 168; wrighti n. sp., 178. 195, 210. Rhopalolasma, 197, 205, 281; fauna, Slaidburn, 278, 418. 206, 282. Slumping, limestone, 239. Ribble, R., 405. Smellows quarry, Broughton, 133, Richardson, Rev. B., 13. 202. Ringsteadia, 343. Smith, William, diaries, 4; geological Risby Park overflow channel, 227. sections and maps, 8; MSS. at Rochdale, Coal Measures, 364. Oxford, 4; places of residence, 71; Roecliffe, laminated clay, 238. published works, 53; self-portrait, Roope, asst. to William Smith, 19. 1. Rotiphyllum, 106, 197, 206, 281, 292, Snake Bed, Osmington Oolite, 348. 322; diagnosis, 106; genotype, 106. Snape Hill, Kilburn, 343, 349. Rough Lee, Sabden, 437. Sodium chloride in glacial clays, Rudston, 223; glacial lake, 225. 236. Rugborne, residence of William Solenopora, 195, 327. Smith, 71. South Cave, 340, 342. Ruston Parva overflow channel, South Ferriby, 352. 228; erratics, 230. Sowerby, J., and William Smith, 54. Rylstone, coral fauna, 298. Species-plexus, discussion, 102. Rylsionia, 206. 281, 283, 292, 325. Speeton, 223, 343, 353. Spenophyllum, 131, 181, 184, 362. Sabden, Shales, 136, 333, 430, 437; Sphenopteris, 168, 182. Valley, 136, 437. Staff ordian, 185. Sabdenian, 152, 434. Staffordshire, north, 278, 318. Saddleworth Geological Society, 373. Stanley Main Coal, 140. Sagittoceras, acutum, 388; costatum, Station Quarry beds, 279, 307. 415, 418, 419; discus, 397; genus, Stebden, Cracoe, 304. 388; relationship, 388; tornquisti, Stigmaria, 167, 183. 169. Stonebarrow Cliff, Charmouth, 8. Saintoft Grange, Pickering, 346. St. George's Land, 295. Samaropsis, pyriformis, n. sp., 179; Strand line, 100 ft., 231. sp. 131, 185. Strata identified . . ., William Samlesbury Bottoms, 333, 430, 437. Smith's, 53. Scarborough, 344; residence of Subdichotomoceras, 353. William Smith, 80. Subplanites, 343. Scarburgense zone, 345. Sudeticeras, 260, 262. Scarburgiceras, 345. Suture, goniatite, 394. Schofield, Eric, in mem., 373. Swanland, 223. Seamer, 348. Swinden Anticline, 132, 191; Lime• Sections, geological, of William stone, 208; Shales, 208; (Cracoe) Smith, 8. quarries, 304. Sedimentation, Middle Visean, 309. Swint Clough, Alport, 148. Shafton, Marine-bands, 131, 175. Syringopora, 200, 206, 281. Shale Grit, Edale, 143. Shales, Carboniferous, 148. Taramelliceras, 345. Shales-with-Limestone, 193. Third Set Limestone, Yoredales, 317. Shap granite, 366. Thorncliff Sandstones, 320. Shards, volcanic, 272. Thornton, Anticline, 132, 190, 211; Shell-reef, facies, 295; fauna, 282; Limestone, 198; quarries, 211; goniatite succession, 301; lithology, Shales-with-Limestone, 198, 210. 282. Thorntondale, 343. 454 PROC. YORKS. GEOL. SOC. XXV

Thorpe Kail, Burnsall, 304, 389. Wheatleyensis zone, 353, 355. Todmorden, 434, 438. Whinney Gill, Skipton, 408, 415, 424. Toft Hill Shales, 208. WHITTLE, W. L., on the occurrence Tournaisian, boundary, 199. of quartzite boulders in the Townsend, Rev. Joseph, 13. Stanley Main Coal at Nostell, near Treak Cliff, Castleton, 305. Wakefield, 140; see W. R. Barker. Triplophyllites, 281, 322. Wiedeyoceras, 391; lineolatum, 438; Trousdale Hill, Malton, 345. nodomarginatum, 438; pingne, 438; Tucking Mill, residence of William sanctijohanis, 438. Smith, 73. Wigan Coal Measures, 364. Tuff, 257, 272. Wilpshire Grits, 136. Tuffaceous limestone, 257, 271. Woburn sheep-shearing, 15. Wolds, Yorkshire, 223. Unconformity, mid-Dinantian, 208. Woodham, Scarborough, 345. U[PTON], A. E., in mem. Henry Woodlands valley, Alport, 143. Laurence Belbin, 134. Wredon Hill limestone, 327. Wydale, Brompton, 347. Vaughania, 200. Wye valley, 279, 306, 330. Vermiculite from biotite, 368. Vertebriceras, 346. Yoredale coral fauna, 101. Virgatosphinctoid.es, 342. Yorkshire, geological section by Visean, boundary, 199, 260; coral William Smith, 61; residences of fauna, 101, 281; goniatites, 258, William Smith, 79. 388; Middle, 280; Upper, 258; YORKSHIRE GEOLOGICAL SOCIETY : zones, 258, 282. Accounts, 1941, 129; 1942, 135; Vitric tuffs, 272. 1943, 221; 1944, 332; 1945, 446. Annual report, 1941, 127; 1942, 130. Field meetings, 1941, 128; 1942, 131. List of members, 1944,