. Homes without hands. : Being a description of the habitations of animals, classed according to their principle of construction. Animals. 570 HOMES WITHOUT HANDS. In the accompauying illustration three most remarkable nests are given, aU of them the work of hymenopterous insects, and aU serving in some degi'ee to illustrate the hexagonal system of cell-building, so common among the MISCHUCVTI-AKIIS RAPHIOASTEft. Of these, perhaps, the central figure is the most interesting, because it entirely sets at rest a question which is periodically agitated. It is made by an insect belong
. Homes without hands. : Being a description of the habitations of animals, classed according to their principle of construction. Animals. 570 HOMES WITHOUT HANDS. In the accompauying illustration three most remarkable nests are given, aU of them the work of hymenopterous insects, and aU serving in some degi'ee to illustrate the hexagonal system of cell-building, so common among the MISCHUCVTI-AKIIS RAPHIOASTEft. Of these, perhaps, the central figure is the most interesting, because it entirely sets at rest a question which is periodically agitated. It is made by an insect belonging to the genus Icaria,. Perhaps my readers may remember that on page 429, the cele- brated bee-ceU problem is described, and that mention is made of the many theories which have been invented to solve the riddle. Among them the two most conspicuous are those which are known as the equal pressure theory and the excavation theory. Differing as they do in many respects—one attempting. 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 Wood, J. G. (John George), 1827-1889; Keyl, Friedrich Wilhelm, 1823-1871; Smith, E. A. (Edward Alfred); Pearson, G. (George). London : Longmans, Green, and Co.
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Keywords: ., bookauthorwo, bookcentury1800, bookdecade1860, booksubjectanimals
