"Alexander Keith JohnstonJames Cowles Pritchard" returned 4 hits

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Author: Alexander Keith
Idea for continuous log of automatically recorded time series graphs (of temperature and barometric pressure), also recording the maximum and minimum
Category: Statistics & Graphics
Author: Alexander von Humboldt (1769-1859)
Charts using subdivided bar graphs, and superimposed squares, showing the relative size of Mexican territories and populations in the colonies
Mediaitems: Cross-section diagram of the Chimborazo, 1805--07, von Humboldt charts, Humboldt portrait, Humboldt portrait, Humboldt biography (French), von Humboldt biography
Category: Statistics & Graphics
Author: Alexander von Humboldt (1769-1859)
First graph of isotherms, showing mean temperature around the world by latitude and longitude. Recognizing that temperature depends more on latitude and altitude, a subscripted graph shows the direct relation of temperature on these two variables
Mediaitems: von Humboldt isotherms, Annals de Chemie et de physique, 1817, von Humboldt isotherm, von Humboldt isotherms from Berghaus' 1849 Atlas, von Humboldt isotherm icon
Category: Statistics & Graphics
Authors: James Cowles Pritchard (1786-1848) & Alexander Keith Johnston (1804-1871)
Ethnographic maps showing distribution of ethnic groups throughout the world
Mediaitems: James Cowles Prichard portrait, Ethnographical map of Africa, Ethnographical map of Europe, Johnston biography, Ethnographical map of Europe, Pritchard biography, Johnston bio and portrait (pdf)
Category: Cartography