. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 122 R. R. HUESTIS. these in 58037 flies; this being somewhat higher than the per cent, reported by Bridges. An inspection of my material, made after most of the data were in, showed that a given female's later subcultures produced, dur- 16 14 12 10 30. FIG. i. Curves of smoothed percentages of exceptional young obtained from groups of females kept at different temperatures. Abscissas ap- proximate the age in days of mother females when eggs were ripened. Ordinates are percentages of exceptional young. Curves end with the
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 122 R. R. HUESTIS. these in 58037 flies; this being somewhat higher than the per cent, reported by Bridges. An inspection of my material, made after most of the data were in, showed that a given female's later subcultures produced, dur- 16 14 12 10 30. FIG. i. Curves of smoothed percentages of exceptional young obtained from groups of females kept at different temperatures. Abscissas ap- proximate the age in days of mother females when eggs were ripened. Ordinates are percentages of exceptional young. Curves end with the group number. Under each curve is the temperature in degrees C. Broken lines denote inbred groups. Thick-lined curves are based on more flies. ing most of her lifetime, almost one per cent, more exceptions per week than her earlier subcultures. The total production of offspring and of exceptions to sex linkage (exc.) of 109 white- eyed females mated with red-eyed males, and changed each week to a new subculture, is given in the totals column of Table I. The curve of these percentages is that of group i, Fig. i. In order to eliminate the possibility of the weighting of the later subcultures by reason of the longer life, or the greater production of exceptions in certain subcultures of a few high-producing fe- males, I excluded, in the figures presented in Table I., the data from all females which produced over 10 per cent, of exceptions or which had any sub-culture failure prior to the one which ended the females production. When the material is divided into groups of females which produced young for the same length of time,. 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,
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
