LIST OF PLATES. 



PLATES , . PAGH 



I. New Limuloid Crustacean from the Upper Silurian ; 



Prosopon mammillatum, H. Woodward, Stonesfield . 1 

 11. New Trilobites, etc., from the Upper Cambrian Eocks 



of North Wales ^ 5 



III. Amethyst-Quartz, with warped Faults in concretion . 12 



IV. StricJclandinia Davidsoni, S. Salteri, Pentamerus ohlongus 59 

 V. British Graptolites 64 



VI. Cambrian Lower Beds, Eailwaj Cutting south-west 



side of Llyn Padarn, Llanberis 121 



VII. Banded Cambrian Slates, Glyn Quarries, Llanberis . 121 

 VIII. ^c^i^iocemsJacca^wm, H.Wood w.jWoolhope Limestone 133 



IX. Fossil Pandanaceous Fruit 153 



X. Section and Map of a Concrete Agate 156 



XI. Saurosternon Bainii, Huxley ; a new Fossil Eeptile 



from South Africa 205 



XII. Pristerodon McKayi, Huxley ; a new Fossil Eeptile 



from South Africa 205 



XIII. Folded Agates and Mural Agates 208 



XIV. Cretaceous and Liassic Crustacea . 258 



■ XV. XVI. Earliest forms of British Brachiopoda 303 



XVII. Lower Lias Crustacea 353 



XVIII. XIX, New Species of Brachiopoda from the Lower Green- 

 sand, at Upware 399 



XX. Trimerella, Billings, Upper Silurian, Island of Goth- 

 land 441 



XXI. Pedunculated and Sessile-eyed Crustacea 489 



XXII. Skull of the Mammoth from Ilford (front view) . . 540 

 XXIII. Ditto ditto ditto (side view) . .541 



LIST OF WOODCUTS. 



Brecciated Concretions 12, 13, 15, 17, 18 



Diagram to show the variable height of the base of an escarpment 



above the sea-level 41 



Section of the valleys of the Lea, the Eoding, and the Thames . . 43 



Section of the valley of the Ouse, near Buckingham 45 



Fossil from Studland Bay ; Kydia calycina, India ; Calycopteris (Getonia) 



fioribunda, India 74 



Contorted Eock, Basil Wood, Charnwood Forest 113 



