List of Illustrations in the Text. 



Eairy 



Fissures in Magnesian Limestone containing Yellow Sand 



Section of lenticular hollow in Magnesian Limestone 



Eryon propinquus, Schlot., sp., Solenhofen 



E. Richardsoni, sp. nov., Lias, Gloucestershire 



Metamorphosed dolomite from Ceylon . . • . 



Metamorphosed dolomite from Ontario 



Diagrammatized section of Foxdale Silica Quarry and section in 



Quarry 



Carapace of Antlirapalcemon Grossarti, Coal-measures 



Ideal section of Bermuda Formations 



Shell-conglomerate (Pcecilozonites Nelsoni), Bermuda 



Diagram sketch of cliff, Castle Harbour . 



Pcecilozonites Bermuclensis from Castle Harbour 



Maiocercus orbicularis, sp. nov., Coal-measures near Bolton . 



Desmoceras marloivense, sp. nov., Chalk Rock, Buckinghamshire 



D. marloioense, sp. nov., part of suture-line .... 



Limncsa Harmeri, n.sp. ....... 



Peneroplis pertusus, grey rock, Bermuda .... 



Diagram showing the comparative structure of the tubercles in Holectypoida 



Diagram showing the comparative arrangement of the tubercles 

 Holectypoida ......... 



Diagram section of Raised Beach and Boulder-clay near Porth 

 St. David's ......... 



Palceocar is precursor (H. Woodw.) ..... 



Head-regions of P. precursor and Anaspides tasmanice . 

 Portion of thoracic region of P. prcccursor .... 



P. typus, restoration ........ 



Plcurocaris annulatus, restoration of head-region 



Leaia trigonioides, sp. nov., Coal-measures, Derbyshire 



Prestwichia, glabellar region ('?), Coal-measures, Shipley 



Terminal segments of air-breathing Arthropod, Kilburn Coal, Notts. 



Post-abdominal segment of Scorpion, Coal-measures, Shipley 



Abdominal segment of Eurypterus, Coal-measures, Notts. 



Carapace of Anthracosiro, Coal-measures, Derbyshire 



Anthracosiro fritschii, Pocock, Coal-measures, Derbyshire 



A. fritschii, Pocock, and A. woodivardi, Pocock, Derbyshire 



Opisthosoma of Anthracomartus, Notts. 



Eleven views of condyles of fossil Shrews 



Section, Cretaceous Series, north side of Lower Shag Valley, New Zealand 



Relation of Lower Tertiaries to Cretaceous Series, Shag Point, New Zealand 



Map of Shag Point, New Zealand 



Section at Komiti Point, New Zealand 



Sketch-map, Ramsey Island 



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Clais, 



