Excerpt from Contributions From the Lick Observatory, No. 5: Meteors and Sunsets Observed by the Astronomers of the Lick Observatory in 1893, 1894, and 1895 According to Professor ferrel (report C. S. O. 1885, part 2, page 38) the limit of the earth's atmosphere is not far from 37 miles. The phenomena of twilight indicate that it extends to 45 miles, as ferrel remarks on p. 74. Beyond the limit, Wherever it may be, the temperature is that of space, say - 27 3° C., or - 461° Fahr. From the earth's surface upwards the temperature diminishes at the rate of Fahr. For each mile 'of ascent. A very interesting experiment by MM. Gustave hermite and besancon in showed that a thermometer marked a temperature of - 51° C. At metres (in a balloon) and that the diminution of temperature was 1° C. Per 186 metres of ascent. 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.