The practical use of meteorological reports and weather-maps
An 1871 government pamphlet issued by the U.S. Army Signal Corps in Washington, explaining meteorological reports and weather maps to observers and the general public. Its single plate is a wood-engraved sky diagram with numbered cloud types — cirrus, cirro-stratus, cumulus, stratus, nimbus — layered above a windmill and low hills, offering hatched cloud textures, slanting rain strokes, and a keyed labelling scheme for diagram work.
