xvi LIST 01 n.i.rs'iK \i IONS 



n - PA.K 



79. Plan of a pcat-tuoss which has filled up a former shallow 



lake, except one small patch of water . . . -196 

 tion of a peat-moss made in the excavation of peat for 

 fu'l 197 



Ri. River terraces ....... 199 



8a. Rock terraces marking ancient shore lines on the south 



coast of the Island of Mull 200 



83. Ice-worn hummocks of rock, the arrow pointing in the direc- 

 tion of the ice-movement ...... 204 



84 Striated stone from the boulder-clay .... 206 



85. Section of a stream -course in the Old Red Sandstone, 



Fochabers ....... . 207 



86. Illustrations of geological section drawing . . . .214 



igrs in the construction of a geological section . .216 

 Tailpiece ......... 252 



