American Journal of Science and Arts, Bindi 61-701855 |
From inside the book
Niđurstöđur 1 - 5 af 70
Síđa 27
... angles , at the hour of noon , and that therefore the values of e just determined show the effects of the ecliptic currents on the declination at 6 A. M. or at 6 P. M. At the equinoxes these cur- rents have but little if any sensible ...
... angles , at the hour of noon , and that therefore the values of e just determined show the effects of the ecliptic currents on the declination at 6 A. M. or at 6 P. M. At the equinoxes these cur- rents have but little if any sensible ...
Síđa 32
... angles , but in the case of the variations of de- clination , the effects of the components running in the direction of the meridian . To consider first the effects of the perpendic- ular components of the radial currents ; let us ...
... angles , but in the case of the variations of de- clination , the effects of the components running in the direction of the meridian . To consider first the effects of the perpendic- ular components of the radial currents ; let us ...
Síđa 37
... angle , and hence that the portion of the photosphere which is in most effective action is very large in comparison with that in the vicinity of the zenith which is principally concerned in modifying the horizontal force . If we suppose ...
... angle , and hence that the portion of the photosphere which is in most effective action is very large in comparison with that in the vicinity of the zenith which is principally concerned in modifying the horizontal force . If we suppose ...
Síđa 42
... angle to the meridian of the station ; 3. In striking confirmation of the ex- planation just given , the hours of maximum disturbance of the horizontal force , in excess and defect , are removed about 6 hours from the hours of maximum ...
... angle to the meridian of the station ; 3. In striking confirmation of the ex- planation just given , the hours of maximum disturbance of the horizontal force , in excess and defect , are removed about 6 hours from the hours of maximum ...
Síđa 62
... angles to each other ruled very lightly with a diamond point , and so adjusted as to coincide with the prolongation of CD and EF through the centre . For all but the highest powers there is no objection to having these excessively ...
... angles to each other ruled very lightly with a diamond point , and so adjusted as to coincide with the prolongation of CD and EF through the centre . For all but the highest powers there is no objection to having these excessively ...
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Common terms and phrases
acid action alloy angle anglesite animals antimony appear auroral auroral light axis binocular binocular vision branches carbonate carbonic acid centre chemical coast color combined composition compounds containing convergence copper corresponding Crustacea crystals of Sb curve diamagnetic direction distance east ecliptic currents Edward Forbes effect eggs experiments eyes fact feet formation galena Geological gossan hematite inches inclined Indies individual intersecting iron Lake lower magnetic mass means memoir miles mineral nature nearly objects observations obtained occur optic axes oxyd p. c. of zinc paper parallel passing perspective line plane plants plates portion position present Prof pyromorphite quartz radial currents regard Regents region remarkable Report resultant river rocks sandstone Sanguinarine Sb Zn Scapolite SECOND SERIES seen shoot species specimens stage stem stereoscope surface temperature tion trees upper variation vegetable vein vertical whole Wulfenite zinc Zodiacal Light
Vinsćlir kaflar
Síđa 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.
Síđa 6 - ... as they shall deem best suited for the promotion of the purpose of the testator, anything herein contained to the contrary notwithstanding.
Síđa 1 - Institution" for the Increase and Diffusion of Knowledge among men, approved August 10, 1846, 9 Stat.
Síđa 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.
Síđa 2 - Senate, to whom was referred the inquiry whether any, and if any, what, action of the Senate is necessary and proper in regard to the Smithsonian Institution ; made Feb.
Síđa 2 - House whether the Smithsonian Institution has been managed, and its funds expended, in accordance with the law establishing the Institution ; and whether any additional legislation be necessary to carry out the designs of its founders, and that said committee have power to send for persons and papers.
Síđa 242 - ... to be seen in the cabinets of Europe. 48. ANGLESITE. This mineral is found abundantly and in beautiful crystals at this locality. The magnificence of many of the specimens can only be realized by seeing those in Mr. Wheatley's cabinet. The crystals are remarkable for their size and transparency — in some instances they weigh nearly half a pound, being as transparent as rock crystal in nearly every part.
Síđa 390 - March, 1854, and was honored with a public funeral as a mark of the respect in which he was held by the authorities and inhabitants of the district. His loss is the more to be regretted, inasmuch as it disappoints those hopes held forth by my predecessor last year, in allusion to the geological discoveries to be expected from Dr. Stanger, who was to have undertaken an official geological exploration of the province of Natal. * * * ' * * # * The only loss we have sustained amongst our Foreign Associciates...
Síđa 241 - The gneissic strata of the tract embracing this group of lead-bearing veins, seem lo differ in no essential features from the rest of the formation ranging eastward and westward through this belt of country. Here, as elsewhere, they consist chiefly of soft...
Síđa 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.