Charles Frederick Marvin
Published: 2018-02-04
Total Pages: 20
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Excerpt from Instructions for Using Marvin's Weighing Rain and Snow Gauge A single stroke of the magnet moves the sliding weight only one eight-hundredth part of an inch and represents one one-thousandth inch rainfall; that is, about $0 of an ounce, or gram; The record pen for one stroke of the magnet moves one one-hundred and fiftieth part of an inch; the scale of precipitation, therefore, is magnified 6% times. The pen will pass once across the sheet for each one-half inch of precipitation, and the sheet is subdivided to represent hundredths of inches of precipitation. The cylinder is 12 inches in circumfer ence and revolves twice in twenty-four hours. The sheet is subdivi ded into ten-minute spaces, and intervals of one minute of time can be determined. 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.
