April, 1919] 



Beginnings of Revegetation 



335 



SEEDS PLANTED BY RUNNING WATER. 



To test this hypothesis and at the same time to ascertain 

 whether there was anything in the deposits which might prevent 

 germination, buckwheat was sown in various habitats. At 

 each planting the seeds were sown in two ways — by placing 

 them in the ground and by scattering them on the surface of 

 the ash. On our return to the Base Camp after the expedition 

 up the valley, it was found that the seeds planted in the ground 



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Photograph by Robert F. Griggs 



LUPINE SEEDLINGS SPREADING OUT INTO BARE ASH. 



Under the protection of the old vegetation along a dune ridge, they have started 



in deep ash beyond the ridge. When mature they will widen the strip of 



protecting vegetation and facilitate further the spread of vegetation. Katmai 



beach, August, 1916. 



had in every case come up well and showed normal growth, 

 which continued as long as we stayed. But of those scattered 

 on the surface of the ash not a single individual was found. 

 Since the vicinity of the Base Camp abounds in birds, it was 

 thought that perhaps the seeds scattered on the surface might 

 all have been picked up by the birds, and we awaited with 

 interest opportunity to examine similar plantings made at 

 Katmai Village where there are no birds and the wind sweep 



