The American Naturalist, Том 23,Випуск 276American Society of Naturalists by the University of Chicago Press, 1889 |
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Abingdon Island abingdonii abundant Academy acquired characters ægerian Algæ American andalusite animals appear Atemeles bathmism black spine blandingii Botany Captain cephalothorax Charles Island Chilopods color corals crystals Darwin described Development Dirochelys distinct E. D. COPE eggs embryo Emys energy Entomology ephippium evolution extinct Eye eminence Fauna forms Galapagos Islands Galapagos tortoises genera genus Geol Geological germ-plasma growth Günther hornblende hundred Illustrated influence inherited insects James Island Jour known Kryst land tortoises Land-Turtles larvæ later living Malacolite male mineral mode of motion molecular Monticulipora Museum myrmecophilous nacre Natural History NATURALIST neck North organism origin ovum pangenesis parasitic period plants Polyxenus Porter Potomac Prof Professor quartz record regarded remarks Report reproductive cells resemblance rocks sanidine says Science shell Silurian skull Society soma Somechusa specimens spermatozooid structure Testudo tion Traversella Tree Borer tubercles Unio variation visited Zeits
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Сторінка 1053 - I have likened them; their neck is from eighteen inches to two feet in length, and very slender; their head is proportioned to it, and strongly resembles that of a serpent. But, hideous and disgusting as is their appearance...
Сторінка 1046 - The creatures are the ugliest in Nature, the shell not unlike the top of an old hackney-coach, as black as jet; and so is the outside skin, but shriveled and very rough. The legs and...
Сторінка 1077 - They are mistaken, who repeat that the greater part of our species are clearly limited, and that the doubtful species are in a feeble minority. This seemed to be true, so long as a genus was imperfectly known, and its species were founded upon a few specimens, that is to say, were provisional. Just as we come to know them better, intermediate forms flow in, and doubts as to specific limits augment.
Сторінка 1052 - Numbers of them had been thrown overboard by the crews of the vessels before their capture, to clear them for action. A few days afterwards, at daylight in the morning, we were so fortunate as to find ourselves surrounded by about fifty of them, which were picked up and brought on board, as they had been lying in the same place where they had been thrown over, incapable of any exertion in that element, except that of stretching out their long necks.
Сторінка 1055 - Island in point of fatness, and their livers are considered the greatest delicacy. Those of James Island are round, plump, and black as ebony, some of them handsome to the eye, but their liver is black, hard when cooked, and the flesh altogether not so highly esteemed as the others. * * * [The tortoises of Hood's Island] were of a quality far superior to those found on James Island. They were similar in appearance to those of Charles Island, very fat and delicious.
Сторінка 1054 - ... to that of the olive. The meat of this animal is the easiest of digestion; and a quantity of it, exceeding that of any other food, can be eaten without experiencing the slightest inconvenience. But what seems the most extraordinary in this animal, is the length of time that it can exist without food ; for I have been well assured, that they have been piled away among the casks in the hold of a ship, where they have been kept eighteen months; and, when killed at the expiration of that time, were...
Сторінка 1053 - Nothing, perhaps, can be more disagreeable or clumsy than they are in their external appearance. Their motion resembles strongly that of the elephant; their steps slow, regular, and heavy; they carry their body about a foot from the ground, and their legs and feet bear no slight resemblance to the animal to which I have likened them; their neck is from...
Сторінка 1056 - ... for six or eight months, and securing the men against the scurvy. I have had these animals on board my own vessels from five to six months without their once taking food or water ; and on killing them I have found more than a quart of sweet fresh water in the receptacle which nature has furnished them for that purpose, while their flesh was in as good condition as when I first took them on board. They have been known to live on board of some of our whaleships for fourteen months under similar...
Сторінка 1048 - I held the muzzle out so that he hit his neck against it, at the touch of which he dropped himself upon the ground and instantly secured all his limbs within his shell. They are perfectly harmless, as much so as any animal I know of, notwithstanding their threatening appearance. They have no teeth, and of course cannot bite very hard. They take their food into their mouths by the assistance of the sharp edge of the upper and under jaw, which shut together one a little within the other, so as to nip...
Сторінка 1065 - ... the reproductive elements. It is evident that these and the other organic units of which the organism is composed possess a memory-structure which determines their destiny in the building of the embryo. This is indicated by the recapitulation of the phylogenetic history of its ancestors displayed in embryonic growth. This memory has perhaps the same molecular basis as the conscious memory, but for reasons unknown to us, consciousness does not preside over its activities.