Excerpt from A Combination Suspended-Load Sampler and Velocity Meter for Small Streams In order to obtain the most accurate determinations of the suspended load and the average composition of the material, a stream should be sampled at a great many vertical and horizontal points in a cross section, the samples at each point to be taken during an interval long enough to eliminate the instantaneous. Variations often reflected in clouds or boiling observable in heavily sediment-laden streams. For precise work, velocity measurements should also be made at the sampling points at frequent intervals to permit the rate of suspended load discharge to be calculated. It is possible, however, where lower degrees of accuracy will serve the immediate practical purpose, to simplify the procedure to the collection of only a few, or even one sample, with similar reductions in the number of velocity measure ments, or their omission at previously rated stations equipped with staff gage or stage recorders. 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.