LIST OF PLATES. 
11. 
III. 
IV. 
V. 
VI. 
VII. 
VIII. 
IX. 
X. 
XI. 
XII. 
XIII. to 
XVII. and 
XIX. 
XVIII. 
XX. 
XXI. 
XXII. 
XXIII. 
XXIV. 
XXV. to 
XXXVII. 
XXXVIII. 
XXXIX. 
XL. to XLIII. 
XLIV. 
XLV. 
XL VI. 
XLVIL 
XLVIII. 
XLIX. 
L. 
LI. to LXV. 
LXVI. 
LXVII. 
LXVIII. 
LXIX. 
Gaugings of Water at Malhain Tain, Malham Cove, and 
Aire Head ... ... ... ... ... ... ... 12 
Diagram showing Chlorine at Malham Cove, and Rainfall 
at Malham Tarn 16 
Smelt Mill Water .Sink 18 
Diagram of Chlorine at Mire s Barn, and Rainfall at 
Malham Tarn -20 
Malham Tarn Water Sink 22 
Limestone Clints, Broad Scar ... ... ... ... 24 
Grey (^ill 2G 
Gordale ... ... ... ... ... ... ... ... 28 
Gordale Scar ... ... ... ... ... ... .. 30 
Malham Cove 32 
Aire Head Spring ... ... ... ... ... ... 34 
Index Plan of Malham District and Section 38 
Drawings of JL f/a/lchfhi/.s 54 to 70 
Strepsodus sulcideiis 8G 
Dimorphosmilia ehoracenses and GoniocerU Lecbnhyi ... 84 
Richard Reynolds, F.C.S 96 
Ingleborough, from Ravenscar 134 
Thornton Force and Crummack Dale 142 
Map of Bradford Basin 154 
Photographs of Carboniferous Plants 
205 to 231 
Photographs of the Alexandra Dock Extension, Hull ... 240 
Sections in the Alexandra Dock Extension, Hull... 248 to 251 
Plan of Hull Docks, showing Alexandra Dock p]xtension... 252 
Plan of Outcrop of Adwalton Stone Coal 254 
Sections of Adwalton Stone Coal ... ... ... ... 256 
Plan showing Outcrop of Halifax Hard Coal ... ... 258 
Section of Halifax Hard Coal 259 
"Walter Percy Sladen ... ... ... ... . . ... 262 
Austwick Beck Head, Crummack Dale ... ... ... 338 
Photographs of Carboniferous Plants ... 371 to 399 
Map of District Round Hebden Bridge 402 
Chlorine Curves near Halifax ... ... ... ... 404 
Diagram of Seasonal Fluctuation of Cidorine in Nile ... 406 
Compound Solubility Carve... ... ... ... 410 
