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CULTURE OF THE DRONE FLY, ERISTALIS TENAX.
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The effect of sex and age on the temperature at which reversal in reaction to light in Eristalis tenax occurs.
1. Over 1,620 observations were made on over 1,000 flies in ascertaining the temperature at which Eristalis tenax becomes negative to light.2. In a luminous intensity of 700-foot candles Eristalis isExpand
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Dark Adaptation in the Eye of Eristalis tenax
T HE process of dark adaptation in photosensory organs has been studied in a few organisms: Volvox (Mast, 1911), Amoeba (Folger, 1925), three lamellibranchs, Mya arenaria (Hecht, 1919 and 1923),Expand
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