Penny Blood: Serial Sensation and Working-Class Entertainment — page 275: what you’re looking at

Machine-transcribed from the original scan — historical spelling and the odd misread are preserved.

258 SEQUENCE OF VOLCANIC ROCKS. [cn. xx. supplied these lavas were separated by the roots of the Car- pathian mountains, and we should no more expect exactly similar flows of rock on opposite sides of the inverted moun- tains below, than we should expect similar alluvial deposits over the two subaerial areas separated by their watershed. Indeed the difference might be even greater, because a mere difference in the steepness of the root on the two flanks, by its effect on the friction between the two, would cause the melted matter and the substratum to be mingled in different pro- portions. Moreover the substratum itself, owing to the dis- turbance caused by eruptions, may have some amount of cir- culation set up in it, and since it goes to make up a consider- able portion of the erupted matter, this, if 1t occur, would cause the lavas to be different. It must be borne in mind that we have not been engaged in inventing a theory, to account for the natural sequence of volcanic rocks; for we have, as we believe, already established the existence of our mountain roots, and have been doing no more than to show how they serve to explain the succession in the order of eruption. | COMIC OOOKS.EO