Rain and Snow Map by A.K. Johnston, 1852

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Rain and snow map by a.k. Johnston – global precipitation chart 1852 this antique meteorological chart titled "the distribution of … Read more Rain and snow map by a.k. Johnston – global precipitation chart 1852 this antique meteorological chart titled "the distribution of rain and snow over the globe" was created by alexander keith johnston and published in 1852 by william blackwood & sons in edinburgh and london. It is plate 14 from johnston’s groundbreaking *physical atlas of natural phenomena*, a landmark 19th-century atlas that visually documented natural science using elegant cartographic design. This thematic map represents one of the earliest global attempts to chart patterns of precipitation, displaying how rainfall and snowfall vary according to geography, latitude, topography, and proximity to oceans. The map divides the world into meteorological zones based on the frequency and regularity of rainfall. Shaded bands mark areas of constant equatorial rainfall, seasonal monsoon regions, zones of periodic tropical downpours, and drier arid zones such as the sahara, arabian peninsula, central australia, and western south america. The map is annotated with explanatory observations, including statements such as “rains fall only at night and early morning” and “rains accompany heat and decrease with altitude,” reflecting the 19th-century state of meteorological knowledge. Areas with snowfall or extremely low precipitation are also marked, highlighting the climatological variety across continents. In addition to the main map, the plate includes three detailed diagrams: * a vertical section comparing snow-line elevations across different mountain ranges worldwide. * a graph illustrating the relationship between precipitation and temperature. * a chart showing how rainfall decreases with increasing distance from coastal regions. Johnston (1804–1871), geographer in ordinary to queen victoria in scotland, was among the first to bring natural science into the visual domain through cartography. His *physical atlas* is considered one of the most influential works of 19th-century thematic mapping, and this plate is a remarkable example of its ambition and execution. This print offers collectors and scholars a glimpse into early meteorological theory and global climatology. Its elegant engraving and carefully hand-colored zones also make it an attractive decorative item for libraries, offices, and scientific interiors. Condition and framing tips: good condition with light toning and mild signs of age near the edges. Printed surface clean and crisp. Best framed in dark wood or matte black with a neutral or parchment mat to bring out the warm tonal shading of the climatic zones. A refined and thought-provoking piece for any natural science or vintage cartography collection. See less