What people are saying - Write a review
We haven't found any reviews in the usual places.
acid action aluminium ammonia angle animal appears auroral light axis Azoic beds carbon carbonic acid Carboniferous chlorid coal coast color colorless containing Cretaceous Crustacea cryolite crystalline crystals curve deposits Devonian diameter direction earth ecliptic elevation equation experiments fact feet formation fossils genera genus geological glass Gulf Stream heat height horizontal inches iron Island Lake latitude lava length light lime limestone lower mass mean metal miles mineral mountains nearly observations obtained occur Old Red Sandstone oxyd oxygen Palaeozoic paper pass plane plants plate portion present produced Prof quantity rays Red Sandstone region remarkable river rocks route salt shales shells side siliceous Silurian soda solution species specimens strata stream substance sulphate sulphuric sulphuric acid surface temperature Tertiary thick tion upper valley vapor vegetable vertical whole zinc zodiacal light
Page 266 - ... a vacuum, without the mediation of anything else, by and through which their action and force may be conveyed from one to another, is to me so great an absurdity, that I believe no man who has in philosophical matters a competent faculty of thinking, can ever fall into it. Gravity must be caused by an agent acting constantly according to certain laws ; but whether this agent be material or immaterial, I have left to the consideration of my readers.
Page 266 - That gravity should be innate, inherent and essential to matter, so that one body may act upon another at a distance through a vacuum, without the mediation of anything else, by and through which their action and force may be conveyed from one to another, is to me so great an absurdity, that I believe no man who has in philosophical matters a competent faculty of thinking, can ever fall into it.
Page 420 - ... which will thus wash and cleanse the metal most thoroughly from the silica and other earthy bases which are combined with the crude iron, while the sulphur and other volatile matters which cling so tenaciously to iron at ordinary temperatures are driven off, the sulphur combining with the oxygen and forming sulphurous acid gas. The loss in weight of crude iron during its conversion into an ingot of malleable iron was found on a mean...
Page 137 - Bryologia Britannica Containing the Mosses of Great Britain and Ireland systematically arranged and described according to the Method of Bruch and Schimper; with 61 illustrative Plates. Being a New Edition, enlarged and altered, of the Miucotogift Britannica of Messrs. Hooker and Taylor.
Page 423 - At that stage of the process immediately following the boil, the whole of the crude iron has passed into the condition of cast-steel of ordinary quality ; by the continuation of the process the steel so produced gradually loses its small remaining portion of carbon, and passes successively...
Page 302 - June, 1855. 4to., pp. 70, 16 plates of 139 figures. (S. C. vii.) 73. Publications of Learned Societies and Periodicals in the Library of the Smithsonian Institution. December 31, 1854. Part 1. 1855. 4to., pp.
Page 467 - Gift of the State of New York. 13034, 0. 5. Sixth annual report of the Regents of the University of the State of New York on the condition of the State Cabinet of Natural History, &o.
Page 45 - ... this kind. Some doubt, however, was expressed as to the action of interposed lead, which induced a series of experiments to settle this question, when the remarkable fact was discovered that the yielding and approximately equable pressure of the lead caused the stone to give way at about half the pressure it would sustain without such an interposition.
Page 74 - The cutting off of the chemical ray facilitates the process of germination, and that both in reference to the protrusion of the radicles, and the evolution of the plume...
Page 267 - ... of the planets in different positions with respect to each other and the sun. Moreover, gravitation is not assumed to be a dual power, and in them only as yet have such removals been observed by experiment or conceived by the mind. The second sub-case, or that of a new or another form of power, is also one which has never been imagined by others, in association with the theory of gravity. I made some endeavours, experimentally, to connect gravity with electricity, having this very object in view...