200 



The Ohio Journal of Science [Vol. XIX, No. 3, 



NEW ROOTS AT THE SURFACE OF THE ASH. 



Those plants like the willows, which readily put out new 

 roots, were at a considerable advantage in recovering from the 

 eruption, as compared with those without this power, like the 

 poplars. For such plants, by putting out new shoots at the 

 surface of the ash and new roots just beneath, could start 

 afresh on the same basis as young plants without the necessity 



Photograph by R. F. Griggs 



A POPLAR WHOSE NEW SHOOTS ARE BLIGHTING, BEGINNING AT 

 THE TOP, BECAUSE OF STARVATION OF THE ROOT SYSTEM. 



