The climate of the United States and its endemic influences. Based chiefly on the records of the Medical Department and Adjutant General's Office. United States Army
Samuel Forry's 1842 medical study of American climate, drawn from United States Army medical and adjutant general records, was published in New York and Philadelphia for physicians and military readers. The two plates are scientific diagrams: a map of the United States annotated with dashed lines and place names, and a rotated graph of temperature curves over a gridded chart, offering a designer sober, hand-ruled data graphics with strong directional lines and small serif labels.
