To the consuls-general, consuls, and
commercial agents of the United States in Europe.
Washington , April 3, 1879.
Gentlemen: In view of representations made to the Department, it is deemed desirable that the next annual report of consular officers in Europe should contain a table showing the humidity of each month of the year at those places within their respective districts where meteorological observations are taken. For the purposes of these reports the year will be understood to be the fiscal year.
I am, gentlemen, vour obedient servant,