Contributions in geographical exploration . Photograph by R. F. GriggsALDERS ALMOST DESTROYED BY HAVING THEIR BUDS KILLED. The cambium was everywhere alive and wherever a bud escaped it grew out withundiminished vigor. Russian Anchorage, July, 1913. Jan., 191!)J Effects of the Eruption on Vei^etation 185 ZONE OF IIKAVV ASIIIALL. We come now to the consideration of conditions in thefifth zone where the vegetation, in addition to being swept bythe blasts already discussed under the preceding deeply buried under ah ashfall so heavy as to iircventthe restoration of an herbaceous ground
Contributions in geographical exploration . Photograph by R. F. GriggsALDERS ALMOST DESTROYED BY HAVING THEIR BUDS KILLED. The cambium was everywhere alive and wherever a bud escaped it grew out withundiminished vigor. Russian Anchorage, July, 1913. Jan., 191!)J Effects of the Eruption on Vei^etation 185 ZONE OF IIKAVV ASIIIALL. We come now to the consideration of conditions in thefifth zone where the vegetation, in addition to being swept bythe blasts already discussed under the preceding deeply buried under ah ashfall so heavy as to iircventthe restoration of an herbaceous ground cover. Concern-ing the conditions of death in this area but little needs to beadded to what has already been said in the preceding section,for the working of the added agent of destruction is so simpleas to require no particular i^^^ ikU, Photograph hy R. F. iiriggs INJURED POPLARS IN LOWER KATi\L\I VALLEY. The branches and ordinary buds were all destroyed. The new prowth has come from dormant buds protected by a heavy growth of oil the large branches. Curiously enough the chief interest in this zone lies, not inthe death of those plants which perished, but in the circum-stances surrounding the survival of the few that persist. Forthese not only bear upon our original problem, that of rcveg-etation, but also throw some interesting side lights on thecharacter of the eruption. Inasmuch as the area near the volcano was not visited untilthree years after the eruption, the observations concerningthese survivals were perforce made on j^lants whicli had begun 186 The Ohio Journal of Science [Vol. XIX, No. 3, to recover. The data are, therefore, somewhat complex,including, beside the effects of the eruption proper, secondaryeffects partly direct consequences of it and partly subsequentrestorative reactions of t
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