Excerpt from Useful Science for High School: A Textbook in General Science Many minds, youthful or mature, want always to know causes - why the radio speaks or whence the wind comes and whither it goes. Those in this fortunate state Of curiosity are led to examine new facts and Old, to search for additional information, to evaluate facts. They are directed to the framing of hypotheses, to testing them by experiment and Observation, then to provisional acceptance or amendment. Finally they are led to comparison, to generalization, to the concept of law. 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.