Excerpt from Mensuration, Mechanical Powers, and Machinery: The Principles of Mensuration Analytically Explained, and Practically Applied to the Measurement of Lines, Superficies, and Solids; Also, a Philosophical Explanation of the Simple Mechanical Powers, and Their Application to Machinery The evil must be, then, in the want of the www kind of text-book one that shall give the why, as well as the how one that shall be adapt ed to the capacity of the student who has no knowledge of mathematics beyond Arithmetic. 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.