Quadrat-bisect in the balf-gravel slide. The face of the trench was cut aloog the front of the 

 quadrat shown \a Plate 26 A: S, Sdidago oreophUa; A, Allium eemuum; E, Etymus trUicoides, 

 fragments of which are represented in blue; C, Calamagrostis purpwrascens; H, Bettchera 

 parvifolia; B, Be^seya plantagin&i. 



