The Technical World Magazine, Volume 17Technical World Company, 1912 |
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Page 24
... cause of labor by the use lations of the national bank- ing laws , and many others . Mr. Harr is thirty - nine years of age . But a few years ago he was a stenographer and before that a printer . He is a native of the Dis- trict of ...
... cause of labor by the use lations of the national bank- ing laws , and many others . Mr. Harr is thirty - nine years of age . But a few years ago he was a stenographer and before that a printer . He is a native of the Dis- trict of ...
Page 26
... causes the " laziness " of the poor white of the South can now be shown on the lan- IN THE DETENTION CAMP ... cause of tuberculosis is now known ; yellow fever has been subdued by destroying the mosquito ; the hook worm can be ...
... causes the " laziness " of the poor white of the South can now be shown on the lan- IN THE DETENTION CAMP ... cause of tuberculosis is now known ; yellow fever has been subdued by destroying the mosquito ; the hook worm can be ...
Page 28
... caused more permanent harm than the immediate rav- ages of the vandal horde . pean , American , or Asian shores ? Such disaster is not impossible and is proved by the fact that often cases have not developed until months after any possi ...
... caused more permanent harm than the immediate rav- ages of the vandal horde . pean , American , or Asian shores ? Such disaster is not impossible and is proved by the fact that often cases have not developed until months after any possi ...
Page 29
... caused the eye to see them in life though the size is so small as to be beyond calculation . This fatal parasite looks somewhat like a fat - bodied The flies that make the attack have a boring tool sticking out from the head . Its point ...
... caused the eye to see them in life though the size is so small as to be beyond calculation . This fatal parasite looks somewhat like a fat - bodied The flies that make the attack have a boring tool sticking out from the head . Its point ...
Page 31
... causes death unless it has bitten an animal or man infected by the para- site , but it of has a variety of prey to feed upon . Eight species of tsetses spring from larvae buried in the mud banks streams . The one that menaces human life ...
... causes death unless it has bitten an animal or man infected by the para- site , but it of has a variety of prey to feed upon . Eight species of tsetses spring from larvae buried in the mud banks streams . The one that menaces human life ...
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acres Alaska animals Bering Sea boat bridge building built canal Carey Act carried cent coal Coatesville concrete construction COPPER RIVER cost crop cylinder David Lubin device dollars eggs electric engine fact farm farmer feet fifty fish five four fruit gutta percha heat hour hundred Idaho inches irrigation Island Kansas land larvæ light living Lubin machine means ment method miles million motor operation passed pipe plant POPULAR SCIENCE pounds produced pumping rail railroad river road Sabetha ship shows side sleeping sickness square miles station steam steel Sudan III surface thing thousand tion town track trees trypanosomes tsetse fly twenty United vessel wall wheels wire wireless York York City