. Biology in America. Biology. Biological Institutions 75 families and traits occurring in any locality, and finally to find the location of a given family and the traits peculiar to it. The Office has extensive collaboration with charitable and penal institutions throughout the country, by means of which it obtains very valuable data regarding the occurrence and inheritance of many defects in man, both mental and physi- cal ; and finally it conducts a training school for workers in human inheritance, with a view to preparing them for service in such institutions. Baked in the scorching rays o
. Biology in America. Biology. Biological Institutions 75 families and traits occurring in any locality, and finally to find the location of a given family and the traits peculiar to it. The Office has extensive collaboration with charitable and penal institutions throughout the country, by means of which it obtains very valuable data regarding the occurrence and inheritance of many defects in man, both mental and physi- cal ; and finally it conducts a training school for workers in human inheritance, with a view to preparing them for service in such institutions. Baked in the scorching rays of the Arizona sun lies Tumamoc Hill, the Hill of the Turtle in the Navajo Desert Botanical Laboratory The deserts of Arizona have been invaded by the biologist, offering as they do a specially attractive field for studies of the influence of environment on both animals and plants. At this station of the Carnegie Institution of Washington at Tucson, Arizona, many important discov- eries have been made as to how plants adapt themselves to a desert environment. Courtesy 0/ the Bureau of Commerce of Tucson. On its slopes, covered with the rocky debris of some convul- sion of the earth long past, grows the giant cactus, gaunt and misshapen by day, spectral and weird by night. Its summit overlooks a tumbled junk heap of hills and hollows suggestive of the thought that the Creator became hurried at the last moment and did not have time to put the finishing touches on the wilderness. At its foot lies the Santa Cruz Valley with the city of Tucson, and across the valley, sharply out- lined against the deep azure of the desert sky, rise the bold commanding shapes of the Santa Catalina Mountains, with. 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 Young, R. T. (Robert Thompson), b. 1874. Boston, R. G. Badger
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