The American Journal of Science and ArtsS. Converse, 1855 |
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acid action alloy angle anglesite animals antimony appears auroral auroral light axis BENJAMIN PEIRCE binocular binocular vision branches carbonate carbonic acid centre character coast color combined composition compounds containing convergence copper corresponding Crustacea crystals of Sb diamagnetic direction distance east ecliptic currents Edward Forbes effect eggs ethyl experiments eyes fact feet formation fossils geological geology gossan inches intersecting iron Islands Journal Lake lower magnetic mass memoir miles mineral Mineralogy mountains natural history nearly objects observations obtained occur optic axes oxyd paper parallel pass perspective line plane plants plates Port Natal portion position present Prof quartz radial currents rain Regents region remarkable Report resultant river rocks sandstone Sb Zn Scapolite SECOND SERIES seen species specific volumes specimens stereoscope surface temperature tion upper variations vein vertical whole wind zinc Zodiacal Light
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Сторінка 4 - I mean stock to remain in this country, to the United States of America, to found at Washington, under the name of the Smithsonian Institution, an establishment for the increase and diffusion of knowledge among men.
Сторінка 6 - ... as they shall deem best suited for the promotion of the purpose of the testator, anything herein contained to the contrary notwithstanding.
Сторінка 12 - And the said regents shall make, from the interest of said fund, an appropriation, not exceeding an average of twenty-five thousand dollars annually, for the gradual formation of a library, composed of valuable works pertaining to all departments of human knowledge.
Сторінка 299 - Parallel of latitude lying between Dona Ana on the Rio Grande and Pimas Villages on the Gila ; by Lieut.
Сторінка 128 - Principles of Geology; or, the Modern Changes of the Earth and its Inhabitants considered as illustrative of Geology. Ninth Edition. Woodcuts. 8vo. 18s. - Manual of Elementary Geology ; or, the Ancient Changes of the Earth and its Inhabitants illustrated by its Geological Monuments.
Сторінка 149 - Report on the Agriculture and Geology of Mississippi; embracing a sketch of the Social and Natural History of the State, by BLC Wailes, Geologist of Mississippi, published by order of the Legislature.
Сторінка 242 - This vein varies in thickness from a few inches to about two and a half feet, and we may state its average width at not less than eighteen inches. It is bounded by regular and well-defined, nearly parallel walls, the prevailing material of which is a coarse, soft granite, composed chiefly of white feldspar and quartz. " It would seem to be a pretty general fact that such of these veins as are confined entirely or...
Сторінка 51 - That they happen at all seasons of the year and at all hours of the day ; but that they are generally most severe in the spring and in the autumn.
Сторінка 179 - ... least. Whenever a garnet or a lump of quartz was imbedded in compact feldspar, and favorably presented to the action of the sand, the feldspar was cut away around the hard mineral, which was thus left standing in relief above the general surface.
Сторінка 53 - Remarks on the changes which take place in the structure and composition of mineral veins near the surface, with particular reference to the East Tennessee Copper Mines.