The National Geographic Magazine, Volume 34National Geographic Society, 1918 - Geography Indexes kept up to date with supplements. |
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Results 1-5 of 62
Page 17
... means multi- plying problems of sanitation , but the health authorities have met every such increase with a decrease of death rate . There were proportionately only half as many deaths from pulmonary tuberculo- sis in the decade from ...
... means multi- plying problems of sanitation , but the health authorities have met every such increase with a decrease of death rate . There were proportionately only half as many deaths from pulmonary tuberculo- sis in the decade from ...
Page 19
... mean an unrelent- ing fight and eternal vigilance to keep down infant mortality . THE PRICE OF HEALTH New York has found , in the words of its Commissioner of Public Health , that it is possible to purchase public health . He maintains ...
... mean an unrelent- ing fight and eternal vigilance to keep down infant mortality . THE PRICE OF HEALTH New York has found , in the words of its Commissioner of Public Health , that it is possible to purchase public health . He maintains ...
Page 31
... means 113 tons of water to every acre , Esopus watershed is far too small for New York's water demands . So provision has been made for the damming of Schoharie Creek and the construction of an 18 - mile tunnel under a mountain . This ...
... means 113 tons of water to every acre , Esopus watershed is far too small for New York's water demands . So provision has been made for the damming of Schoharie Creek and the construction of an 18 - mile tunnel under a mountain . This ...
Page 37
... means reach the same level . The surface of Silver Lake is 362 feet lower than that of Ashokan Reservoir , because of the friction in the big waterway . When it is remembered that a column of water 362 feet high exerts a pressure of ...
... means reach the same level . The surface of Silver Lake is 362 feet lower than that of Ashokan Reservoir , because of the friction in the big waterway . When it is remembered that a column of water 362 feet high exerts a pressure of ...
Page 39
... means . A ten - car subway train can carry a thousand people to or from work . It takes fifteen such trains to ... mean undertaking . But that is only the beginning of the big city's transportation troubles . The people ride more ...
... means . A ten - car subway train can carry a thousand people to or from work . It takes fifteen such trains to ... mean undertaking . But that is only the beginning of the big city's transportation troubles . The people ride more ...
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