...attracted as yet that attention it deserves : — " I can, Indeed, hardly doubt that all vertebrate animals having true lungs have descended by ordinary generation...prototype, of which we know nothing, furnished with a float-apparatus or swim-bladdor." " This doctrine may, at first view, appear startling to some ; bnt...

...(191) he carries on the argument thus : — " I can indeed hardly doubt that all vertebrate animals having true lungs, have descended, by ordinary generation,...apparatus, or swimbladder. We can thus, as I infer from Pr >fessor Owen's interesting description of these parts, understand the strange fact, that every particle...

...history ." Elsewhere he had already said, " I can, indeed, hardly doubt that all vertebrate animals having true lungs have descended, by ordinary generation,...a floating apparatus or swim-bladder. We can thus . . . understand the strange fact, that every particle of food and drink which we swallow has to pass...

...lung, or organ used exclusively for respiration. I can indeed hardly doubt that all vertebrate animals having true lungs have descended by ordinary generation...furnished with a floating apparatus or swimbladder." — P. 191. Which theory Mr. Darwin considers to account satisfactorily for certain anatomical peculiarities...

...prototype, of which we Tcfww nothing, furnished with a floating apparatus or swim-bladder. We ess Ihus, as 'I infer from Professor Owen's interesting description of these parts, understand the strange fact that every particle of food and drink which we .swallow has to pass over the orifice of...

...time that they also breathe free air in their swimbladders. Believe me, sir, all vertebrate animals having true lungs have descended, by ordinary generation, from an ancient prototype furnished with a swimming-bladder. As successive generations of aquatic animals became first amphibious...

...or organ used exclusively for respiration. I can, indeed, hardly doubt that all vertebrate animals having true lungs have descended by ordinary generation...interesting description of these parts, understand the strange fact that every particle of food and drink which we, swallow has to pass over the orifice of...

...or organ used exclusively for respiration. I can, indeed, hardly doubt that all vertebrate animals having true lungs have descended by ordinary generation...interesting description of these parts, understand the strange fact that every particle of food and drink which we swallow has to pass over the orifice of...

...exclusively for respiration." On this view it may be inferred that all verteberate animals having two lungs have descended by ordinary generation from an...furnished with a floating apparatus or swim-bladder (p. 210), which means in plain English that mammals and man himself descended from fish. " So wo may...

...the members of the same class."" And again: "I can indeed hardly doubt that all vertebrate animals having true lungs, have descended, by ordinary generation...of which we know nothing, furnished with a floating . . . ; whilst his is not supported by any evidence that rotalinea or nummulites ever originate spontaneously,...