The National Geographic Magazine, Volume 104National Geographic Society, 1953 - Geography Indexes kept up to date with supplements. |
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Page 385
... cricket was , its call seemed to come from another part of the room . Fiddle by Scraping Wings This aural illusion was no accident . Most crickets , like cicadas , become ventriloquists to deceive pursuers . * Nature's fiddlers , they ...
... cricket was , its call seemed to come from another part of the room . Fiddle by Scraping Wings This aural illusion was no accident . Most crickets , like cicadas , become ventriloquists to deceive pursuers . * Nature's fiddlers , they ...
Page 388
... crickets make supersonic noises , sounds too high for the human ear to hear . Why Does a Cricket Sing ? Another scientist timed a snowy tree cricket at 90 chirps per minute , or 5,400 chirps per hour in a 12 - hour night . At that rate ...
... crickets make supersonic noises , sounds too high for the human ear to hear . Why Does a Cricket Sing ? Another scientist timed a snowy tree cricket at 90 chirps per minute , or 5,400 chirps per hour in a 12 - hour night . At that rate ...
Page 391
... crickets and found they were sing- ing , respectively , C ( D on warm nights ) , E , and F , starting two octaves above middle C. Not normally house- hold residents , crickets do enter houses in late sum- mer when vegetation be- comes ...
... crickets and found they were sing- ing , respectively , C ( D on warm nights ) , E , and F , starting two octaves above middle C. Not normally house- hold residents , crickets do enter houses in late sum- mer when vegetation be- comes ...
Contents
Fact Finding for Tomorrows Planes A Little Faninabox Wind | v |
All America Mingles in the Prairie State | ix |
Rip Van Winkle of the Underground North Americas Much Misunder | xii |
Copyright | |
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