The first molar cuts the gum at two weeks old, is in full use at three months, and is shed in the course of the second year. The second cuts the gum at about six months, and is shed in the fifth year. The third appears at two years, is in full use about the fifth year, and finally disappears about the ninth year. In the sixth year the fourth breaks from the gum, and lasts till the animal's twenty-fifth year. The fifth cuts the gum at the twentieth year, is entirely exposed soon after the fortieth, and is thrust out about the sixtieth year, by the advance of the sixth molar, which appears at about fifty years old, and probably lasts for half a century more. If others succeed this,--a seventh and even an eighth, as some assert,--these would carry on the Elephant's life to two or three centuries, in accordance with an ancient opinion, which is in some degree countenanced by modern observations. To come back, then, to the case before us, since the fifth molar has its fore part much worn, and the posterior laminae scarcely yet protruded from the gum, it follows that this Elephant is now not far from the fortieth year of his life, a deduction which well agrees with the dimensions of his tusks, and his appearance of mature vigour. Can you detect a flaw in this reasoning? And yet how baseless the conclusion, which assigns a past existence of forty years to a creature called into existence this very day. X. PARALLELS AND PRECEDENTS. (_Man._) "Once, in the flight of ages past, There lived a Man,--and who was he? Mortal, howe'er thy lot be cast, That man resembled thee."--MONTGOMERY. We have knocked at the doors of the vegetable world, asking our questions; then at those of the lower tribes of the brute creation, and now at those of the higher forms; and we have received but one answer,--varying, indeed, in terms, but essentially the same in meaning,--from all. And now we have one more application to make; we have, still in our ideal peregrination, to seek out the newly-created form of our first progenitor, the primal Head of the Human Race. And here we behold him; not like the beasts that perish, but-- "Of far nobler shape, erect and tall, Godlike erect, with native honour clad, In naked majesty, as lord of all." The definitive question before us is this: Does the body of the Man just created present us with any evidences of a past existence, and if so, what are they? And that we may rightly judge of the matter, we will, as on former occasions, call in the aid of a skilful and experienced physiologist, to whom we will distinctly put the question. _The Physiologist's Report._ In replying to your inquiry concerning the proofs of a past existence in the Man before me, I must treat of him as a mere animal,--a creature having an organic being.