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acid action alcohol amount appear becomes beds body called carbon cause character close color considerable contains continued crystals deposits described determined diameter direction distance east effect entirely evidence examination existence experiments extended fact fathoms feet figures formation four Geological give given greater heat important inches increase indicate iron Island Journal known Lake latter length less light limestone lower magnetic maps mass material means measured method miles mountain nature nearly observations obtained occur origin passing plates portion position prepared present probably produced Prof Professor published referred region remains remarkable Report Ridge River rocks sand seems seen separated shown side similar slates solution species specimens strata surface taken temperature thickness tion true upper valley volume weight
Page 171 - Thou hidest thy face, they are troubled : thou takest away- their breath, they die, and return to their dust. Thou sendest forth thy spirit, they are created : and thou renewest the face of the earth.
Page 316 - With numerous Illustrations. Crown 8vo. y. 6d. POLARISATION OF LIGHT. By W. SPOTTISWOODE, FRS With many Illustrations. Second Edition. Crown 8vo. 3*. 6d. ON BRITISH WILD FLOWERS CONSIDERED IN RELATION TO INSECTS.
Page 251 - ... number of particles, each capable of vibrating in perfect unison with every possible undulation, it becomes necessary to suppose the number limited ; for instance, to the three principal colours, red, yellow, and blue...
Page 307 - an Essay concerning important physical features exhibited in the Valley of .the Minnesota River and upon their signification," submitted to the Chief of Engineers in 1874 and published in the Report for 1875 (pp.
Page 321 - Problems of rotary motion presented by the gyroscope, the precession of the equinoxes, and the pendulum.
Page 147 - Report upon vertebrate fossils discovered in New Mexico, with descriptions of new species. Octavo, 18 pages.
Page 249 - That fundamental supposition is, that the parts of bodies, when briskly agitated. do excite vibrations in the ether, which are propagated every way from those bodies in straight lines, and cause a sensation of light by beating and dashing against the bottom of the eye, something after the manner that vibrations in the air cause a sensation of sound by beating against the organs of hearing.
Page 113 - Doubtless, careful examination would discover the pathways of glaciers running into the lake from the eastern summits also; but I failed to detect any very clear traces of such, either on the eastern or on the northern portion of the western side of the lake; while between the southwestern end and Sugar Pine Point, a distance of only eight or ten miles, I saw distinctly the pathways of five or six. North of Sugar Pine Point there are also several They are all marked by moraine ridges running down...
Page 278 - ... proportional to their indices of refraction. There are no transparent media for which the magnetic capacity differs from that of air more than by a very small fraction. Hence the principal part of the difference between these media -must depend on their dielectric capacity. According to our theory, therefore, the dielectric capacity of a transparent medium should be equal to the square of its index of refraction.