. Carnegie Institution of Washington publication. Analysis of Heteeogeneity in the Population 273 appeared in full strength, while 5 and 6 were still practically absent. This generation was the product of the first, but under conditions that were unusual for the place, in that the rains had been light in the earlier portion of the season, the ranges in the humidity had been large, and the desiccation high,. Total 1897 / / / \ \ \ 7 12 5 4 7 58 1034 Females. Fio. 56.—Census of first annual generation at the Chapultepec colony In lOOS, showing conditions In the population with respect to pronot.
. Carnegie Institution of Washington publication. Analysis of Heteeogeneity in the Population 273 appeared in full strength, while 5 and 6 were still practically absent. This generation was the product of the first, but under conditions that were unusual for the place, in that the rains had been light in the earlier portion of the season, the ranges in the humidity had been large, and the desiccation high,. Total 1897 / / / \ \ \ 7 12 5 4 7 58 1034 Females. Fio. 56.—Census of first annual generation at the Chapultepec colony In lOOS, showing conditions In the population with respect to pattern sod rela- tlye frequency of each type. .^^^. ^^.-31 41-1 ^ 74 ^ ao ^ ^ ^^^^ gg 214 ^^ .^^^^^ 34 «18 -i^ ^V^ 4- 211 ! 141—---<©» 192 \--^ \ .96 -^5», I 43 ^<^:i .^ 88 y^^-^,,'^. 171 _A.^ ^. •''j^\ ^-9 5S#-46 41 55 77 319 41 \^- 17 1624 Males. Total 3253. 1629 Females. irio. 57.—Census of second annual generation In the Chapultepec colony In 1905, showing the array in the pronotal pattern, and a sudden change in aspect of the population from that shown in preceding censuses. while in the latter portion of the season the rains had been copious and well distributed, with low ranges in the desiccation and moderate and uniform tem- peratures. The comparison of the two censuses of this season with those of previous years shows different responses in the population to the conditions of. 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 Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
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Keywords: ., bookauthorcarnegie, bookcentury1900, bookdecade1910, bookyear1918
