If I say, that in any creature breathing is only a function indispensable to vitality, inasmuch as it withdraws from the air a certain element, which being subsequently brought into contact with the blood imparts to the blood its vivifying principle, I do not think I shall err; though I may possibly use some superfluous scientific words. Assume it, and it follows that if all the blood in a man could be aerated with one breath, he might then seal up his nostrils and not fetch another for a considerable time. That is to say, he would then live without breathing. Anomalous as it may seem, this is precisely the case with the whale, who systematically lives, by intervals, his full hour and more (when at the bottom) without drawing a single breath, or so much as in any way inhaling a particle of air; for, remember, he has no gills.