Evolution; its nature, its evidences, and its relation to religious thought . TdTtus IcXy us. 1VDVa\\ ?poXyu*^^::^ tpvctttMttw /. Fig anutouiy of Calopteuus spretus, the head and thoraxdisjointed ; up, uropatagium ; /, furcula; e, cercus (drawn by J. T. Kin^sley). HOMOLOGIES OF THE ARTICULATE SKELETON. 143 regions, viz., cephalo-thorax aad abdomen. In insectsthey are grouped into three very distinct regions—head,thorax, and abdomen. In insects, therefore, we find forthe first time the head distinctly separated from the restof the body. This is an evidence of high grade, becauseit
Evolution; its nature, its evidences, and its relation to religious thought . TdTtus IcXy us. 1VDVa\\ ?poXyu*^^::^ tpvctttMttw /. Fig anutouiy of Calopteuus spretus, the head and thoraxdisjointed ; up, uropatagium ; /, furcula; e, cercus (drawn by J. T. Kin^sley). HOMOLOGIES OF THE ARTICULATE SKELETON. 143 regions, viz., cephalo-thorax aad abdomen. In insectsthey are grouped into three very distinct regions—head,thorax, and abdomen. In insects, therefore, we find forthe first time the head distinctly separated from the restof the body. This is an evidence of high grade, becauseit shows the dominance of head-functions. The insect, such, for example, as a grasshopper, con-sists of seventeen or eighteen segments (Fig. 35). Ofthese, four belong to the head, three to the thorax, andabout ten to the abdomen. Those of the abdomen areall separated and movable ; those of the thorax and headare more or less consolidated. The appendages of thehead-segments become antennae and jaw-parts, i. e., mandi-bles—maxillae and labium; the appendages of the thorax-segments become legs (the wings are not homologouswit
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectreligion, bookyear192
