Abstract
IT may be recollected by some of the readers of NATURE that a few years ago1 I contrived a whistle for testing the upper limits of the power of hearing very shrill notes by different men and animals. When properly made, it easily suffices to do this, in the case of men and most animals, but it cannot, neither can any other instrument hitherto devised, emit such notes as it is conceivable that insects may hear. The problem whether any insects can hear notes whose numbers of vibrations per second is manyfold greater than those of the notes audible to men has not yet been fairly put to the test of experiment. I wish to show that this can now be done.
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GALTON, F. Hydrogen Whistles . Nature 27, 491–492 (1883). https://doi.org/10.1038/027491a0
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DOI: https://doi.org/10.1038/027491a0