The National Geographic Magazine, Volume 85National Geographic Society, 1944 - Geography Indexes kept up to date with supplements. |
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Page 167
... hundred materials , entomologists within a year were able to rec- ommend three repellents safe for man to use liberally on his skin . All prevented mos- quitoes from biting him for a few hours . Formula 612 , dimethyl phthalate , and In ...
... hundred materials , entomologists within a year were able to rec- ommend three repellents safe for man to use liberally on his skin . All prevented mos- quitoes from biting him for a few hours . Formula 612 , dimethyl phthalate , and In ...
Page 282
... Hundred Years Following the Trojan War Lost to History The Trojan War is usually dated about 1100 B. C. We have no historical record between that time and some four hundred years later , in the eighth century before our era , when men ...
... Hundred Years Following the Trojan War Lost to History The Trojan War is usually dated about 1100 B. C. We have no historical record between that time and some four hundred years later , in the eighth century before our era , when men ...
Page 288
... hundred years from 330 to 30 B. c . saw a tremendous spread of Greek thought and culture . Many Ancient Findings Accurate Eratosthenes of Cyrene computed the cir- cumference of the earth to within about two hundred miles of what we now ...
... hundred years from 330 to 30 B. c . saw a tremendous spread of Greek thought and culture . Many Ancient Findings Accurate Eratosthenes of Cyrene computed the cir- cumference of the earth to within about two hundred miles of what we now ...
Contents
Brazils Potent Weapons By W ROBERT MOORE | 41 |
Paricutín the Cornfield That Grew a Volcano Mexico By JAMES A GREEN | 129 |
Saboteur Mosquitoes By HARRY H STage | 165 |
Copyright | |
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