438 
Classified Index. 
ILLUSTRATIONS—continued. 
GEOLOGY. 
Axe-heads, Neolithic, from Holderness, 
Plate II. 
Ball-beds Lower Calcareous Grit, Scar- 
boro, Plate XI. 
Carboniferous Limestone, Gentle Fold 
in, Isle of Man, Plate XII. 
Crush-Conglomerate, with quartz veins, 
in Manx Slates, Plate XII. 
Estuarine Beds, Carnelian Bay, Scar- 
boro, Plate XI. 
Millstones, Plates VII. and VIII. 
Pickering, Vale of, Sketch Map of 
Boring on Derwentdale Farm, 196 
Plumpton Grit, Erratic of, 117 
Scamridge Dykes, 145 
LEPIDOPTERA. 
Polia chi and var. Olivacea, 425. 
Scotosia dubitata (in hibernating posi- 
tion), 149, 150 
MAMMALIA. 
Turtle, Logger-headed (Thalassochelys 
caretta). 
MOoLLUSCA. 
Alasmodon vetustus Brown, Figs. 2 
and a3 helaies oN 
Helix aspersa, J. W. Taylor, Plate XV. 
Margaritana margaritifera, Fig. 1 
Plate X. 
Unio distortus Bean, Plate IX. 
, 
Unio kendalli n. sp., Plate XIV. 
Whelk, Teeth of, 357 
PALZOBOTANY. 
Cladophlebis denticulata Brongn, fron: 
the inferior Oolite of Yorkshire, 4 
Ginkgo biloba, L., Plate V. 
Matonidium Goepperti (Ett), from the 
inferior Oolite of Yorkshire, 6 
Williamsonia gigas (Lind. and Hutt), 
85 
PORTRAITS, VIEWS AND Maps. 
Cole, Rev. E. Maule, 178 
Handley, John, j.p., Plate I. 
Map shewing the geographical dis- 
tribution of the Floras referred to in 
A. C. Sewards’ paper on “The Jurassic 
Flora of Yorkshire,’ Plate VI. 
Map shewing disposition of Pedicu- 
laris palustris L. on banks of Derwent 
near Bubwith, 254 
Mortimer, John Robert, Plate XIII. 
Searboro’, South Bay, Diagrammatic 
Sketch of Exposures in, 327 
Spalding Gentlemen’s Society, Home 
of, 406 
VERMES. 
Aporrectodea similis Friend, 397 
Limnodrilus aurantriacus Friend, 414 
Fridericia exiguus, figures of parts of, 
414 
SPECIES AND VARIETIES NEW LO SCEENCE 
DESCRIBED IN; THIS VOLUME 
FUNGI. 
Pluteolus Mulgravensis and Clavaria 
crosslandii, found during Yorkshire 
Naturalists’ Union Fungus Foray at 
Sandsend, September 1911, C. Cross- 
land, 392-393 
me: 
Leaia trigonioides sp. nov., found in 
Derbyshire and Nottinghamshire 
Coalfields, noted, 417 
GEOLOGY, 
MOLLUSCA. 
Unio kendalli, found in the Lower 
Estuarine Series of Saltwick, near 
Whitby, full description, with plate, 
J. W. Jackson, 211-215 
PaL#o-BoTany. 
Mention of recent discovery of a new 
Bennettitalian ‘Flower’ at Gris- 
thorpe; also of fruit-like bodies 
named Caytonia, in paper entitled 
“ Recent Researches in the Juarassic 
Plants of Yorkshire,’ read before 
Portsmouth Meeting of British Asso- 
ciation, 1911, by H. H. Thomas, 409- 
410. 
VERMES. 
Full description of Henlea perpusillia 
Friend, found at Cauldwell, H. 
Friend, 320 
Full description and illustration of 
Aporrectodea similis Friend, found in 
Kew Gardens, Hilderic Friend, 396- 
399 
Naturalist, 
