...way to suggest the idea of the great sea-serpent. ' It may be inferred that all vertebrate animals having true lungs have descended by ordinary generation...furnished with a floating apparatus or swim-bladder ' (210) ; this coupled with ' the There was therefore no violation of the distinction of organization...

...converted a swim-bladder into a lung. On this view it may be ' inferred that all vertebrate animals having true lungs have descended by ordinary generation...KNOW NOTHING, furnished with a floating apparatus or swim -bladder ' (210). The proof drawn from an ' ideal similarity ' leading to a progenitor, ' of which...

...becomes an insuperable difficulty. * I can hardly doubt,' says Mr. Darwin, ' that all vertebrate animals having true lungs have descended by ordinary generation...furnished with a floating apparatus or swim-bladder. But the transmutation of a mere air-bladder, which contracts and expands, into the full system of the...

...becomes an insuperable difficulty. ' I can hardly doubt,' says Mr. Darwin, ' that all vertebrate animals having true lungs have descended by ordinary generation...from an ancient prototype, of which we know nothing, famished with a floating apparatus or swim-bladder. But the transmutation of a mere air-bladder, which...

...teachings of revelation and of science, Mr. Darwin says, " I can hardly doubt that all vertebrate animals having true lungs have descended by ordinary generation...from an ancient prototype of which we know nothing." If his theory had been true, we should have found in the debris of past eras, the remains of animals...

...can hardly doubt that all vertebrate animals having two lungs have descended by ordinarygeneration from an ancient prototype of which we know nothing^...furnished with a floating apparatus or swim-bladder. So all lungs were once swim-bladders, and betray a fishy ancestry. His argument is, that the lung is...

...doubt that all vertebrate animals having true lungs have descended by ordinary generation from the ancient prototype, of which we know nothing, furnished with a floating apparatus or swimbladdcr.' We must be cautious ' In concluding that the most different habits of all coulJ not graduate...

...with true lungs are descended by ordinary generation from an ancient and unknown prototype, which was furnished with a floating apparatus or swimbladder. We can thus, as I infer from Owen's interesting description of these parts, understand the strange fact that every particle of food...

...of the same class." " / can indеed hardly doubt that all vertebrate animals having true lungs are descended by ordinary generation from an ancient prototype, of which we know not/iing, furnished with a floating apparatus or swim bladder." I believe — " It w conceivable, that...

...becomes an insuperable difficulty. " I can hardly doubt," says Mr. Darwin, " that all vertebrate animals, having true lungs, have descended by ordinary generation...furnished with a floating apparatus or swim-bladder." But the transmutation of a mere air-bladder, which contracts and expands, into the full system of the...