. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 180 WILLIAM L. DOLLEY, JR., AND LAWRENCE H. GOLDEN rests a cardboard, k. Below the metal bottoms are two heat chambers, cm. deep, C, D, lined with corrugated cardboard, /, and asbestos sheeting, in. The heat is supplied by two 100-watt Mazda lamps, n, with constant voltage, each lamp being wired r P a B D -m- FIGURE. 1. Sectional view of the apparatus used. See text. A 100-watt Mazda lamp, o, was suspended cm. over the center of the white floor of the light compartment. The luminous intensity on this
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 180 WILLIAM L. DOLLEY, JR., AND LAWRENCE H. GOLDEN rests a cardboard, k. Below the metal bottoms are two heat chambers, cm. deep, C, D, lined with corrugated cardboard, /, and asbestos sheeting, in. The heat is supplied by two 100-watt Mazda lamps, n, with constant voltage, each lamp being wired r P a B D -m- FIGURE. 1. Sectional view of the apparatus used. See text. A 100-watt Mazda lamp, o, was suspended cm. over the center of the white floor of the light compartment. The luminous intensity on this floor was 700 , as recorded by a Weston exposure meter. In these experiments only flies of known age and sex were used. They were raised in the laboratory according to the methods previously described (Dolley et al., 1937, p. 410). The exact temperature at which the flies became negative to light and went into the dark chamber was ascertained for six groups of flies whose sex and age are as follows: 1. Young males, 5-16 days. 2. Young females, 5-16 days. 3. Middle-aged males, 28-36 days. 4. Middle-aged females, 28-36 days. 5. Old males. 48-77 days. 6. Old females, 48-77 days. Two hundred and seventy observations were made on members of each of these groups. No more than three were made on an individual insect and at least twenty- four hours elapsed between successive observations on the same Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
