. The vegetation of a desert mountain range as conditioned by climatic factors. Desert plants. CLIMATE OF THE SANTA CATALINA MOUNTAINS. 55 Smith* has deduced two curves of altitudinal increase of rain, one applicable to Pima and Pinal Counties, Arizona (the counties in which the Santa Catalinas lie), the second to Graham and Cochise Counties. These curves are based on records of various lengths, chiefly from sta- tions located in the valleys of these mountainous counties. §mith's curves are reproduced in figure 5, in which they have been brought half way down toward the base line in order to m
. The vegetation of a desert mountain range as conditioned by climatic factors. Desert plants. CLIMATE OF THE SANTA CATALINA MOUNTAINS. 55 Smith* has deduced two curves of altitudinal increase of rain, one applicable to Pima and Pinal Counties, Arizona (the counties in which the Santa Catalinas lie), the second to Graham and Cochise Counties. These curves are based on records of various lengths, chiefly from sta- tions located in the valleys of these mountainous counties. §mith's curves are reproduced in figure 5, in which they have been brought half way down toward the base line in order to make them comparable with the curve expressing the average summer rainfall of the Santa Catalina Mountains for 1911, 1912, and 1913. The portion of Smith's Graham-Cochise curve extending above 5,500 feet is based on a single short record at 6,000 feet. The curve of altitudinal rise of rain for 1911, 1912, and 1913 in the Santa Catalinas is merely a simple average of the actual readings for the three summers, without any attempt to correct in accordance with. 3,000 MOO 6,000 7,000. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Shreve, Forrest, 1878-1950. Washington, D. C. , Carnegie Institution of Washington
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