Diagram of Meteorology, 1846.

UNITED KINGDOM - MAY 01: Meteorological diagram �displaying the various phenomena of the atmosphere�, identified by a key beneath the illustration. From a selection of 44 scientific teaching diagrams, drawn and engraved by John Emslie on geology, geography, astronomy and natural philosophy. This hand-coloured engraved plate is taken from a series published and probably written by James Reynolds of 174 Strand in London in 1850-1860 in response to the popular demand for information on the developments taking place in science and engineering as a result of the Industrial Revolution. Superbly illustrated images with a related text were presented loose in a portfolio so that they could be passed around a class or lecture room or used as posters. (Photo by SSPL/Getty Images)