LIST OF PLATES. 



PLATBB. 



^ I. Microscopic Structure of the PitchBtones of Arran 1 



--II. Fossil Perns ^^ 



"III. Rostellaria Fricei, H. "Woodw,, Grey Chalk, Folkestone 97 



"'IV. iS^tiafojmfl! j5o/«/sjt?ow%^a, Agassiz, Lower Lias, Lyme Regis 145 



x/ V. Oolitic Coniferee from Solenhofen 193 



i^VI. Tylose in Tertiary Wood from Thanet 241 



•^'VII. Chart of a portion of North-West Greenland 289 



t^VIII. Plan of the Sea-shore showing the Position of the Masses of Meteoric 



Iron found at Ovifak, Greenland 355 



•^ IX, A New Arachnide from the Coal-measures, Lancashire 385 



• X. Palseozoic Crustacea 433 



" XL Sections to Illustrate Mr. Tylor's Paper on the Formation of Deltas ... 485 



•^XII. Graptolites from the Moffat Group 501 



(•On'iJAo^OTs -Bowweyi, Lower Greensand, Lyme Regis 529 



(/Saij/nYe* iJ^^^zesM, Tertiary, Aix in Provence 529 



•'XIIL 



LIST OF WOODCUTS. 



Coast-section of a part of New Colwyn Bay 16 



Both sides of a Striated Stone from the Colwyn Blue Clay 16 



JJoc/te OTOMior.wee in Anglesey, looking leeward or down-stream 19 



Distant view of Moel-y-Tryfan, from near Bangor 26 



Section of Marchlyn-mawr 22 



Cari^jocar^ow im<f%«, Carr., Coal-measures, Falkirk 55 



C«rc?joca/-^ow awo»za?M»w, Oarr., Coal-measures, Derbyshire (?) 57 



Araucarioxylon {Pinites) Withami, Kraus., Coal-measures, Edinburgh 58 



Pine- wood from Wealden at Brook, Isle of Wight , 58 



Pothocites Grantmi, Paterson, Coal-measures, Edinburgh 58 



Pyrites Deposit, Buitron Mine, in the Province of Huelva, in Spain 60 



Esquimaux Knife from West Coast of Greenland 73 



JSwi^oceras j3ro<«/orOT«, Hall, Coniston Series, near Ambleside 103 



Araucarites Hdberleinii, Dyer ... ... ... ... ..- ... ... 151 



Araucaritea sphcerocarpus, Carruthers 151 



Longitudinal Section of Scale of -4?-aMCfln« ^e«f«<;87W 152 



Map of Strata at Whitberry Point, East Lothian 162 



