Animal and vegetable physiology, considered with reference to natural theology, by Peter Mark Roget .. . hile the intricate chemical ?o leaves of the Dioncea viuscipula; and the shrinking of thoseof the Mimosa j^udica, or sensitive plant. On a superficialview, it must be acknowledged that these motions bear a re-semblance to the effects of muscular contractility; but I believethat naturalists are now generally agreed that there is no realanalogy between these phenomena, and that there is no sub-stantial evidence for the existence of that property in the vege-table kingdom. MUSCULAR POWER. 129


Animal and vegetable physiology, considered with reference to natural theology, by Peter Mark Roget .. . hile the intricate chemical ?o leaves of the Dioncea viuscipula; and the shrinking of thoseof the Mimosa j^udica, or sensitive plant. On a superficialview, it must be acknowledged that these motions bear a re-semblance to the effects of muscular contractility; but I believethat naturalists are now generally agreed that there is no realanalogy between these phenomena, and that there is no sub-stantial evidence for the existence of that property in the vege-table kingdom. MUSCULAR POWER. 129 processes of the living system generally eludeour research, and the higher faculties of sensa-tion and perception are dependent on still morerecondite and mysterious powers of nature, themechanical functions are effected by the simplerproperties of matter, and allow us a clearerinsight into the wonderful art which has beenexerted in their accomplishment. Muscles, during their contraction, increase inthickness in the same proportion as they dimi-nish in length.* It is on this account, more 37 38 43.


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