. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 88 W. W. ALPATOV TABLE I Data on the Conditions of the Development of Flies Reared for the Study of the Problem of Cell Size Temperature limits of variation Average Time of the beginning of the ex- periment Time from egg until pupation, in hours Time of feeding Underfed flies Kept at 28° — October 24, 1928 ±.50 48 hours Normally fed flies Kept at 28° . October 24, 1928 ±.74 Until normal leaving of the food 28° flies ° ° October 8, 1928 ±.36 Until normal leaving of the food 18° flies ° 18.
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 88 W. W. ALPATOV TABLE I Data on the Conditions of the Development of Flies Reared for the Study of the Problem of Cell Size Temperature limits of variation Average Time of the beginning of the ex- periment Time from egg until pupation, in hours Time of feeding Underfed flies Kept at 28° — October 24, 1928 ±.50 48 hours Normally fed flies Kept at 28° . October 24, 1928 ±.74 Until normal leaving of the food 28° flies ° ° October 8, 1928 ±.36 Until normal leaving of the food 18° flies ° ° October 8, 1928 ±.89 Until normal leaving of the food The flies have been collected in 70 per cent alcohol and measured in glycerine under a cover glass. The following characters on the wings of collected flies have been studied: the length and width of the wing, and the number of hairs on a surface equal to square mm. on the lower surface of the wing. Fig. 1 represents the points of measure- ment and the place where the hairs have been Region of 6r/stte counting FIG. 1. Measurements of the wing. AB, length of the wing, CD, width of the wing. The square shows the area of the bristle countings. For the measurements the following optical systems were chosen: Spencer mm. objective and a micrometer ocular in a No. 2 ocular. The countings of the hairs of the lower surface of the wing were done in a way approved by Th. Dobzhansky. Pieces of paper with squares. 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 La
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
