THE NATURALIST, 1973. PLATE Ve 
Fic. 1.—Conerete ‘Trunk Head,’ Stream Dyke. Nov. 12th, 1912. 
PB pS See 
eee aS 
Photos by] [H.S. Harker. 
Fic, 2.—Sea-ward end of Stream Dyke Jooking east. Nov. 12th, 1912. 
