Carpenter, William Benjamin, 1813-1885 · London : John Churchill · leaf 758
^ … 736 VERTEBRATED ANIMALS. necessity for such a mode of renewing the fluid in contact withthem, being superseded by the muscular apparatus withwhich the gill-chamber is furnished.—But in Reptiles, therespiratory surface is formed by the walls of an internalcavity, that of the lungs: these organs,…
Microscopy
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