Description: Two world maps showing mean barometrical pressure and prevailing winds for January and mean barometrical pressure and prevailing winds for July. Orange isobar lines indicate pressures of 30 inches and above; blue isobar lines indicate pressures below 30 inches. Prevailing wind directions shown with arrows.
Source: Geo. G. Chisholm and C.H. Leete, eds., Longmans' New School Atlas (New York, NY: Longmans, Green, and Co., 1904) 5
Map Credit: Courtesy the private collection of Roy Winkelman |
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