Note A — Introductory Note
Reading edition
It may be remembered that the weather service of the United States originated with the Signal Corps of the Army and that the Weather Bureau was created from it by Act of Congress, June, 1891, and made a bureau of the U. S. Department of Agriculture. As a former member of the Signal Corps the writer enjoyed the renewal of old friendships among the officers at the Aviation School. Col. W. A. Glassford, Signal Corps, U. S. Army, Commandant of the War Department Aviation School at San Diego, kindly read the manuscript of the following pages and the writer gratefully acknowledges his valuable suggestions.