LIST OF PLATES. 



Plate I. Interesting- Northern Shells 



II. C. P. Hobkirk 



III. Nearly coniplete Roos Carr Image 



IV. British Jet Necklace found in a Barrow on 

 Calais \\'okl ... 



V. A. H. Havvorth 



Va. S. Chadwick 



VI. G. Norman ... 



VII. W. Spence 



VIIa. Yorkshire Naturalists at Filey ... 



VIII. Cliffs near Gristhorpe ... 



IX. Common Buzzard's Nest 



X. V'eterans... 



XI. FourF's.L.S 



XII. Pol-holes in 'The Trough,' Sleighlholnie 



Beck, Bowes ... 



XIII. Washington Teasdale 



XIV'. Mycologists at Helmsley — Leaders... 



XV. Mycologists at Helmsley — Helpers 



XVI. Pallcxvicinia Flof(nvia)ia (Nees) Schiffner ... 



to face p. 



97 

 105 

 '9.1 



-."53 

 241 



257 

 3-- 

 361 

 368 



376 

 4>7 



433 



44' 



