Principles and scholiaPorter & Coates, 1884 - Meteorology |
Common terms and phrases
æther altitude anti-cyclonic area of high area of low ascending current Atlantic atmosphere aurora barom becomes blow causes centre centrifugal force changes cirrus cirrus clouds climate clouds coast cold colder condensed continually cool cooler cubic cubic foot cumulus cumulus clouds cyclonic depression direction distance disturbances earth earth's surface east electricity equator equatorial Fahrenheit fall feet Ferrel's Law force gradients greater Gulf Stream gyrations heat height high pressure hygrometer inches increase indicate influence isobars isothermals latitude light lines low barometer low pressure lower lunar magnetic mercury meteorological miles moist moisture motion mountains nearly neutral point North America northern hemisphere observations ocean particles perature polar polariscope poles produced radiation rain rainfall regions rise saturated side snow solar sometimes southern stations storms stratus summer temperature tendency thermometer tion tornado tube upper vapor velocity warm warmer waterspouts weather wind winter
Popular passages
Page 134 - ... upon the liberal co-operation of the different telegraph companies. It will thus be seen that without material aid from the government, but through the enlightened policy of the telegraph companies, and with the assistance of the munificent bequest of James Smithson " for the increase and diffusion of knowledge...
Page 132 - ... •"However frequently the idea may have been suggested of utilizing our knowledge by the employment of the electric telegraph. It is to Professor Henry and his assistants in the Smithsonian Institution that the credit is due of having first actually realized this suggestion. - - - It will thus...
Page 134 - We are indebted to the National Telegraph Line for a series of observations from New Orleans to New York and as far westward as Cincinnati, which have been published in the Evening Star of this city. We hope in the course of another year to make such an arrangement with the telegraph...
Page 243 - ... even of such of our land storms as become more or less cyclonic after they are fully developed. (7.) The precipitation of vapor of course gives rise to local cyclones, which, however, may be easily and speedily overborne by the grand anti-cyclonic whirls of a half million miles or more in area. (8.) These and other peculiarities, point to a probable origin of storms in the blending of polar and equatorial currents, near the latitudes at which the general tendency of the winds changes its direction.
Page 116 - In other words, the temperature rises as the barometer falls, and falls as the barometer rises. When the barometer has been falling for some time, clouds begin to overspread the sky, and rain to fall at intervals ; and as the central depression approaches, the rain becomes more general, heavy, and continuous. After the centre of the storm has passed, or when the barometer has...
Page 134 - It would seem, therefore, that nothing but the disturbances of the late war prevented our having had ten years ago a valuable system of practical storm warnings. Even before peace had been proclaimed, Professor...
Page 136 - Telegraph office in Cincinnati, undertook the daily publication (by the Rogers manifold map process) of a weather map for the United States, and this added very much to the value of and interest in the reports. Copies of this map were regularly sent to the telegraph offices in Chicago and New York and elsewhere, everywhere meeting -with favor.
Page 138 - War be, and he hereby is, authorized and required to provide for taking meteorological observations at the military stations in the interior of the continent, and at other points in the States and Territories of the United States, and for giving notice on the northern lakes and on the sea-coast, by magnetic telegraph and marine signals, of the approach and force of storms.
Page 138 - Statutes require meteorological observations to be taken at the military stations in the interior of the Continent and at other points in the States and Territories, for giving notice of the approach and force of storms.
Page 134 - In response to this communication it was resolved, "That this Association recommend to pass free of charge, . . . brief meteorological reports, . . . for the nse and benefit of the Institution.