The National Geographic Magazine, Volume 80National Geographic Society, 1941 - Geography Indexes kept up to date with supplements. |
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Page 231
Less dramatic but heavier execution is done by small flying parasites . Powerful pumps shoot arsenate of lead and fish oil into the treetops through hoses some- times two miles long , and an autogiro dusts the poison on forests .
Less dramatic but heavier execution is done by small flying parasites . Powerful pumps shoot arsenate of lead and fish oil into the treetops through hoses some- times two miles long , and an autogiro dusts the poison on forests .
Page 247
Back home in Chile , Argentina , Brazil , and Uruguay , this insect appears in no such numbers and causes far less damage ( Plate VII and page 233 ) . Some Smile , Others Sputter with Rage , at a. U. S. Dept. of Agriculture day or two ...
Back home in Chile , Argentina , Brazil , and Uruguay , this insect appears in no such numbers and causes far less damage ( Plate VII and page 233 ) . Some Smile , Others Sputter with Rage , at a. U. S. Dept. of Agriculture day or two ...
Page 741
With headline developments whirling all over the globe , nothing less than a world map is adequate for following the dramatic events of the day . It will enable The Society's 1,100,000 member families to orient themselves quickly and to ...
With headline developments whirling all over the globe , nothing less than a world map is adequate for following the dramatic events of the day . It will enable The Society's 1,100,000 member families to orient themselves quickly and to ...
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