. Animal and vegetable physiology considered with reference to natural theology. Natural theology; Physiology; Plant physiology; Biology. WINGED INSECTS. 209 viscera, and furnishing extensive surfaces of attach- ment to the muscles, from the action of which all the varied movements of the system are derived. The muscular system of perfect insects is exceed- ingly complex. Lyonet has described and deli- neated an immense number of muscular bands in the caterpillar of the Cossus, and the plates he has given have been copied in a variety of books in illustration of this part of the structure of i
. Animal and vegetable physiology considered with reference to natural theology. Natural theology; Physiology; Plant physiology; Biology. WINGED INSECTS. 209 viscera, and furnishing extensive surfaces of attach- ment to the muscles, from the action of which all the varied movements of the system are derived. The muscular system of perfect insects is exceed- ingly complex. Lyonet has described and deli- neated an immense number of muscular bands in the caterpillar of the Cossus, and the plates he has given have been copied in a variety of books in illustration of this part of the structure of insects. The recent work of Straus Durckheim affords an equally striking example of admirable arrangement in the muscles of the Melolontha vulgaris, or cock- chaffer, the anatomy of which has been minutely investigated by that distinguished These muscles are represented in Fig. 144, which has been carefully reduced from his beautifully executed plates. The largest mass of muscular fibres is that marked a, constituting the muscles which depress the wings, and which are of enormous size and strength. On examining the different structures which compose the solid framework of insects, we find them conforming in every instance to the general type of Annulose animals, inasmuch as they con- sist of thickened portions of integument, encircling the body; but variously united and consolidated,. 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 Roget, Peter Mark, 1779-1869. London : W. Pickering
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