Tyndall, John, 1820-1893 · New York : Appleton · leaf 149
^iBiaiii,liiiiii«iiimiiiiiiii .!.,.. ■ ■ii*«ii ffim imiiiiiiiliilBiiiiii 20 grams. … relaxed, and finally divides sharply into two ventral segments, as at b, Fig. 50. What is now the stretchingweight?—20 grains, or one-fourth of the first. With astretching weight of almost exactly 9 grains it divides intothree segments, as at c; while with a stretching weightof 5 grains it divides…
Sound
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