PLATE II. 



SCALARIFORM EXAMPLES 



OF 



HELIX NEMORALIS, 



Photoc^.raphed by R. Welch. 



{See page 244). 



Figs. i-i6. — A selected series from the Collections of Messrs. 

 Brockton Tomlin, W. A. Green, W. Swanston, and R. 

 Welch, showing graduation in the height of the spire. 



Figs, i 7-19. — Examples showing results caused by injury to the shell. 



Fig. 20. — Shell showing the deepest suture and roundest whorls 

 of any observed ; from the collection of Mr. Brockton 

 Tomlin. 



