Annals of the Lyceum of Natural History of New-York, Volume 3

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Lyceum of Natural History of New York, 1836

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Página 129 - ... limbs and tail are very large, the latter strongly crested. From the form of its body, it is called, in the Southern States, alligator tortoise. It bites severely, and will seize any thing presented to it, and sometimes will not let go its hold even after the head is severed from the body. It is sought after as an article of food, but, when old, the flesh is rank and disagreeable, and, at all times, it exhales a strong, musky odor. It attains large dimensions : individuals have been met with...
Página 236 - To this may be added, that C. intumescens, owing to the scarcely exserted peduncles, has the loose, few- (5-8-) flowered spikes closely approximate, so as to be almost indistinguishable ; and the perigynia are erect, much shorter, (6-7 lines long,) slightly serrulate towards the apex of the beak, and...
Página 44 - Thomson describes it as a mineral of " a light grayish yellow colour, consisting of a congeries of very small rounded grains, easily separable from each other, and not larger than small grains of sand. These grains are translucent, and some of them indeed transparent. The lustre of the transparent grains is splendent ; that of the translucent grains shining. The lustre is inclining to resinous. The grains are rounded, but when examined with the microscope, they seem to consist of imperfect crystals....
Página 322 - This species infests a great variety of plants, and is to be found throughout our country from the Great Lakes to the Gulf of Mexico and from the Atlantic to the Pacific.
Página 82 - Nutallite in my possession, are eight-sided prisms, which cleave in the direction of the faces of a right square prism. The colour is white ; in some parts of the crystal yellowish, in others bluish or greenish. The yellowish-white parts of the crystal are transparent ; the bluish nearly opaque ; showing evidently the presence of some foreign matter. Streak white. Lustre vitreous. Easily scratches by the knife. Specific gravity in different specimens was found to vary from 2.748 to 2.758.
Página 50 - ... we read (LC p. 50,) that the mineral received by him from " Mr. Nuttall, (from Bolton, Mass.) bears so much resemblance to the Picrosmine of Hadinger, both in character and composition, that he strongly suspects the two things to be mere varieties. The mineral is white, with a shade of green, powder white. It consists of a congeries of prismatic crystals, very irregularly disposed, and involved in each other. Lustre , glassy ; transparent on the edges. The analysis gave : Silica 56.64 Magnesia...
Página 67 - ... amorphous compact stone, through which a few scales of mica are scattered, having much the appearance of claystone ; but softer. Fracture earthy. Colour light-greyish blue. Powder very light smalt blue. It is rather harder than gypsum ; but soft enough to be scratched by the nail. Sectile. Opaque. The particles, when scraped off with a knife, feel gritty between the teeth. Specific gravity, 2.606. It does not melt per se before the blowpipe. Mr THOMAS...
Página 45 - ... inclining to resinous. The grains are rounded, but when examined with the microscope, they seem to consist of imperfect crystals. The texture before a powerful magnifier seems foliated ; but the grains are so small, that it is not easy to make out its true texture with accuracy. Specific gravity, 3.201. " Easily crushed to powder by the nail of the finger. It is therefore soft. It does not scratch calcareous spar.
Página 221 - A Notice of Some New, Rare, or Otherwise Interesting Plants, from the Northern and Western Portions of the State of New York.
Página 135 - a tooth and part of the jaw of a lizard monster or saurian animal resembling the famous fossil reptile of Maestricht.

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