LIST OF PLATES. 



Plate I. Eg-g:s of the Sandwich Tern in Cumberland ... to face p. 65 



II. Ring-ed Plover on Nest ... ... ... ... ,, 65 



III. The Cowthorpe Oak ,, 88 



IV. T. Petch, B.A., B.Sc.(Lond.) ,, 89 



V, Skipsea Lacustrine Deposit, showing- Shell- 

 Marl and Peat 137 



VI. Prehistoric Remains from East Yorkshire ... ,, 153 

 - „■ VII. ,, ■„ ,, ... 153 



,, VIII. Trow Gill ... ,, T29 



,, IX. Prehistoric Remains from East Yorkshire ... 185 



j> X. ,, ,, ,, ,, ... ,, 185 



XI. Some British Bats ... ... ... ... ... ,, 164 



XII. British Boat found at Brig-g-, Lincolnshire ... ,, 165 



,, XIII. Skeleton of Irish Elk from Close-y-garey, St. 



John's ... .. ... ... ... ... ,, 190 



,, XIV. Two Views of a Small Urn, from Cronk Aust,- 



Isle of Man ... ... ... ... ... 191 



,, XV. Fissured Limestone near Top of Whitfield 

 Gill ; Semmerwater, with Adelboro' in the 



distance... ... ... ... ... ... ,, 209 



XVI. Charles Street ' Clay Pit, Louth; Hubbard's 



Valley, Louth ... ... ... ... ... ,, 217 



,, XVII. Cutting, west end of Withcall Tunnel ; Chalk 



Pit, Boswell ,, 217 



,, XVIII. Photograph of Strata at Thickley, Durham ; 



Teeth of Janassa hitiiminosa (actual size) ,, 221 



,, XIX. Sections of Root and Stems of Jiinciis com- 

 munis and Jiinciis siipinus, and Rush Pond 308 



,, XX. Pond Veg-etation : Bur-reed and Rush Zones, 



and Rush and Water Purslane Zones ... ,, 309 



,, XXI. Eg-gs of Grey and Golden Plovers ... ... ,, 349 



,, XXII. '^QoXwXe^^i {Vesperugo 7ioctula) ... ... ... ,, 325 



XXIII. Members of Y.N. U, Mycological Committee ... 337 



XXIV. Hardraw Scaur ... ... ... ... ... 349 



XX\\ Greenstone Chlppings ... ... ... ... 341 



,, XXV^I. Neolithic Implements from Durham ... ... ,, 361 



