. Carnegie Institution of Washington publication. A PHYSIOLOGICAL CHARACTER. 43 .3 O O O ° 7 ' ,°0 oo 4- ? 3 2 o o ,°o 6- 44 oo oooo oooooo 22O4985 9020 10 10 81- 0 O O — I 0 4-5 8-9 12-1 4-5 8-9 I2-| 4-5 8-9 12-1 4-5 8-9 12-1 4-5 8-9 1912 1913 1914 1915 1916 i ..til . B JLJJL f . T T . 7 I T T .50 .25 00 .25 .50 10 r >o - )0. 4-5 8-9 1912 12-1 4-5 8-9 1913 12-1 4-5 8-9 1914 12-1 m rv 4-5 8-9 1915 12-1 4-5 8-9 1916 FIGURE 2.—Line 695. A. Relative rates of descent of the two strains. The base-line represents an equality of descent, i. e., if both strains produced young of the same generation
. Carnegie Institution of Washington publication. A PHYSIOLOGICAL CHARACTER. 43 .3 O O O ° 7 ' ,°0 oo 4- ? 3 2 o o ,°o 6- 44 oo oooo oooooo 22O4985 9020 10 10 81- 0 O O — I 0 4-5 8-9 12-1 4-5 8-9 I2-| 4-5 8-9 12-1 4-5 8-9 12-1 4-5 8-9 1912 1913 1914 1915 1916 i ..til . B JLJJL f . T T . 7 I T T .50 .25 00 .25 .50 10 r >o - )0. 4-5 8-9 1912 12-1 4-5 8-9 1913 12-1 4-5 8-9 1914 12-1 m rv 4-5 8-9 1915 12-1 4-5 8-9 1916 FIGURE 2.—Line 695. A. Relative rates of descent of the two strains. The base-line represents an equality of descent, i. e., if both strains produced young of the same generation of descent on the same day the circle would fall on the base-line with a figure "0" placed adjacent. Positions above the base-line (solid circles) indicate that the minus strain in a particular generation was lagging by as many generations as the point falls in units below the base-line and by as many additional days as are indicated by the adjacent numeral. The horizontal scaling indicates the two-month periods of the experiment. B. Reproductive indices plotted to show which strain is superior in vigor (and by how much it is superior) in the different two-month periods in experiment. Solid circles indicate that the plus strain is superior by the amount indicated by the distance the solid circle lies above the base- line; conversely, open circles below the base-line indicate the amount of superiority of the minus strain. The horizontal scale indicates, as always, the two-month periods of the experiment. C. Reaction-time curves. The plus strain in solid, the minus strain in broken line. The vertical scale indicates seconds of reaction-time, the horizontal scale two-month periods of the experiment. The points in the curves represent mean individual reaction-times by two-month periods. The roman numerals indicate times at which "test series" were conducted, and the plus and minus signs the positions for the test series means for the two strains. It seem
Size: 3141px × 796px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorcarnegie, bookcentury1900, bookdecade1900, bookyear1902
