ON PHOTOGRAPHS OF GEOLOGICAL INTEREST. 325 



PJiotograpJied hy J. Birtles, Norihwich. Si::e 6x4 inches. 



Eesd. No. 

 544-546 Witton Hall Rock Salt Threeviewsof interior of mine (photographed 

 Mine. Novthwich. .1883 . by electric light) 



Cornwall. 



Per Yorkshire Naturalists'' Union (Geol. Photo. Sectioyi). {Photographed 

 hy Herbert Denison, 32 Clarendon Road, Leeds.) Size 6x4 inches. 



453,459 Durgan,Helford River, Fal- Coast scenery, Devonian 



mouth Harbour, 1890 

 454 Cave, East of Falmouth Marine denudation 



Harboixr 

 455-458 The Lizard (4 views) . Coast scenery 



Photographed hy J. J. Cole, F.B.A.8., ^ Ilayland,' Sutton, Surrey. 



571 Norcot, Bude . . . Carboniferous strata 



572 Long Island, Trevalga . Slates ; volcanic ash 



573 Boscastle Coast . . . „ quartz masses embedded 



Cumberland. 



Per Yorkshire Naturalists^ Union (Geol. Photo. Section). (Photographed 

 hy Lawrence Richardson, Sedhergh School.) Size 4x3 inches. 



291 Head of Eunerdale Valley, Mounds of glacial debris 



1890 



292 Borrowdale . . . Glaciated rock surface 



Derbyshire. 

 Photographed hy William Potter, Matlock, Size 10 X 8 indies. 



276 Stevens' quarrj-, Matlock Carboniferous limestone, with lead v&in 

 Dale, ISyO 



Per Yorkshire Naturalists' Union (Geol. Photo. Section). (Photographed hy 

 Godfrey Bingley, 15 Cardigan Boad, Leeds.) Size 6x4 inches. 

 468 Matlock Bath, Scarthin Nick Gorge in Carboniferous limestone 



Carboniferous limestone 



Carboniferous limestone, effects of erosion 



477 Matlock, High Tor 

 469-474 Dove Dale 

 480,482-3 „ Pillar Rock 



475 Miller's Dale, Chee Tor 

 476-478 Chee Dale 



479 MonsalDale 



481 Ashwood Dale . . 



Per Professor James Geikie, LL.D., F.B.S. (Photographed hy Herbert 



Bolton, Manchester Miueum, Manchester.) Size 12 x 10 inches. 

 542, 543 Darley, near Matlock, 1891 Cutting in boulder clay, with large boulders 



Photographed hy Evan Small, M.A., B.Sc, University College, Nottingham. 

 570 Miller's Dale . . . Weathering of Carboniferous limestone 



