Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 807
of table, whistling cheerfully while hetap, tap, tapped away at a heliograph. Heproved to be one of the men of the United StatesGeodetic Survey, who had been ordered up hereto exchange flashes with a comrade who was toanswer him from the peak of San Jacinto, sixtymiles away to the north. These two… … SWINGING THROUGH THE AIR AT THE RATE OF I30 FEET PER MINUTE now long past noon, and he had been sitting herehour after hour, with his instrument and hiseyes trained upon the distant mountain, patientlyserving the cause of accuracy, with special re-gard to the superb series of maps published bythe…
Children's literature
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