ANNUAL REPORT OF THE CHIEF SIGNAL OFFICER TO THE SECRETARY OF WAR FOR THE FISCAL YEAR ENDING JUNE 30, 1881

摘要

These reports contain reports and correspondence from the Chief Signal Officer to the Secretary of War for the year from 1861-1891. From 1892 onwards they contain the similar reports for the Chief of the U.S. Weather Bureau. Report year ends June 30, but the meteorological data are for the calendar year. In 1935 the title is changed to United States Meteorological Yearbook.