Photo by W. L. Bray. 
Fic. 43. Bare polished granitic rock from which the “ duff blanket ”’ was 
burned by the Long Lake West fire of 1908. The moss-mat (Polytrichum) 
stage is making some progress in covering again this dificult type of substratum. 
The old stumps give some idea of the thickness of duff,burned away. 
Photo by W. L. Bray. 
Fia. 44. View of a detail of the Long Lake West burn and the moss-mat 
stage of recovery. Some grasses and herbaceous annuals coming in. Also 
the aspen-fire cherry stage. The space beneath the buttresses of the stump 
indicates the depth of the duff_blanket destroyed. 
