Cannon, G: Juvenile Instructor, Vol. 18

Excerpt from The Juvenile Instructor, Vol. 18: August 15, 1883

Here is a problem exactly similar. On examination we find that a certain house is built on a foundation of well cemented concrete three feet deep, that it has ten courses of stone in the basement, forty courses of brick in the first story, thirty-six courses in the second, thirty-two in the 'third with a roof of nine inch rafters, covered with inch boards, and an inch and a half layer of coal-tar and gravel; now tell us how long was the house in building? Why the very school-boy would laugh at the absurdity of such a question. He would say, How can I tell unless I know where the materials were obtained, how they were conveyed, how many workman were employed, and how much they eculd do in aday? If the rock had been brought from a distance, the brick to be made by hand, the lumber all dressed with a hand-saw and jack plane, and all the work done by a slowgoing jobbing contrae tor who employed only three or four men - why, they would not get through in a year. But if the rock was found in excavating the cellar, if the brick was made by machinery and near at hand, the lumber dressed by steam saw and plan ing mills, and thirty or forty workmen employed it might be all finished in a month.

So the geologist ought to say, I do not know either the source of the materials of the earth's strata nor the distance from which they were conveyed to their present position, nor the forces which were employed in changing them from their primitive elements to the forms in which we now see them; therefore I cannot tell the time required for their formation. If the crust of the earth was originally fused into granite by intense heat, and this granite has been thrown up into vast mountains by the internal heat of the earth; and in turn, these mountains have been slowly worn away, by the action of wind and rain and frost, and conveyed down to the shores of the primeval ocean, by the still slower agency of mountain torrents and rivers; and if these deposits having first been the home of various species of animals and plants have hard ened into rock which in turn has been heaved up by volcanic forces - if this was the mode of creation, hundreds of millions of years may have been required to produce the effects we now see upon the surface of the globe.

About the Publisher

Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com

This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.