Annual Report of the Chief Signal Officer Made to the Secretary of War for the Year ..
United States. Army. Signal Corps
ଜାନୁଆରୀ 1880 · U.S. Government Printing Office
ଇବୁକ୍
1068
ପୃଷ୍ଠାଗୁଡ଼ିକ
ଏହି ଇବୁକ୍ ବିଷୟରେ
The work covers military signaling and the weather service. The latter brand was transferred in 1890, to the Weather Bureau, organized under the Dept. of Agriculture.