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Excerpt from A Water-Power Reconnaissance in South-Central Alaska The two controlling features of a stream basin with respect to its water power capacity are (1) the run-off and its variation throughout the year and (2) the head under which the water can be utilized at the wheels. A third feature, however, that will frequently determine the practicability of the project on Alaska streams is the storage capacity that can be created above the point of diversion. 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.