The National geographic magazine . struck. Not only were the stones thatfell on St Vincent larger than those which descended on Martinique, but,what is also instructive, stones of twoclasses are conspicuous on the desolatedfields. The greater part of the debrisconsists of gray scoriaceous andesite,and came from the columns of fresh lavathat rose in the conduit of La material was sufficiently cooled tobecome solid before it was blown intothe air, and to a great extent was re-duced to dust by the sudden expansionof the steam it contained. In additionto the fragments of fresh lava,
The National geographic magazine . struck. Not only were the stones thatfell on St Vincent larger than those which descended on Martinique, but,what is also instructive, stones of twoclasses are conspicuous on the desolatedfields. The greater part of the debrisconsists of gray scoriaceous andesite,and came from the columns of fresh lavathat rose in the conduit of La material was sufficiently cooled tobecome solid before it was blown intothe air, and to a great extent was re-duced to dust by the sudden expansionof the steam it contained. In additionto the fragments of fresh lava, the fieldsare strewn with angular masses of olderand much more compact rock, whichwas torn from the walls of the conduitof the volcano by the uprush of moltenmaterial and steam and blown high intothe air. These fragments of old rock. GEORGETOWN KINGSTOWN Sketch Map Prepared by Israel C. Rus-sell Showing Zones of Devastationin St Vincent The black area is the region of greatest lossof life ; the black and dark areas are the zoneof total destruction. In the light area the vege-tation was not injured except by light showerof volcanic dust. > o o Crq f1 y CO o y .? tk x 1 ; .?? •. .1 ? 1. V i*$ • ; H V- * ^\ i,H IK. Tt* ^ ;... 284 The National Geographic Magazine
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectgeography, bookyear18
