The American Journal of Science and ArtsS. Converse, 1847 |
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常見字詞
Agassiz Alcyonaria ammonia analysis animals appears beds boiling budding carbonate carbonic acid Carboniferous cause cent character chlorid cleavage coal color common compounds containing copper coral crust crystals cupellation deposits diameter disk dissolved earth electricity elevation fact feet fossil Frémont genera genus geological gives globule glycocoll grain gun-cotton heat hippuric acid Hopeton Oats husk hybrid hydrochloric hydrochloric acid inches iron islands lake lamellæ leaf less lime magnesia miles mineral mounds mountains nature nearly nitric acid nitrogen observed obtained ocean oxyd pelopic per-centage Permian phosphates phosphoric acid plant polyps portion potash precipitate present produced Prof quantity Quartz Quartz Quartz remarkable river rocks salt SECOND SERIES side silica Silurian silver soda soluble solution species specimens strata straw substance sulphate sulphuric acid surface temperature tion variation weight Wheal zoophytes
熱門章節
第 130 頁 - 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.
第 131 頁 - That, in proportion as suitable arrangements can be made for their reception, all objects of art and of foreign and curious research, and all objects of natural history, plants, and geological and mineralogical specimens, belonging or hereafter to belong, to the United States...
第 193 頁 - Having now made what observations our means afforded, we proceeded to descend. We had accomplished an object of laudable ambition, and beyond the strict order of our instructions. We had climbed the loftiest peak of the Rocky mountains, and looked down upon the snow a thousand feet below ; and, standing where never human foot had stood before, felt the exultation of first explorers.
第 143 頁 - Americana) has become a household book in all the intelligent families in America, and is undoubtedly the best depository of biographical, historical, geographical and political information of that kind which discriminating readers require."— -SitUiman's Journal.
第 192 頁 - We managed to get our mules up to a little bench about a hundred feet above the lakes, where there was a patch of good grass, and turned them loose to graze. During our rough ride to this place, they had exhibited a wonderful surefootedness. Parts of the defile were filled with angular, sharp fragments of rock, three or four and eight or ten feet...
第 440 頁 - ... the planet Neptune is not the planet to which geometrical analysis had directed the telescope ; its orbit is not contained within the limits of space which have been explored by geometers searching for the source of the disturbances of Uranus; and its discovery by Galle must be regarded as a happy accident.
第 448 頁 - Upon their separating from one another into distant countries they agreed to withdraw themselves punctually into their closets at a certain hour of the day and to converse with one another by means of this their invention.
第 448 頁 - The friend, in the mean while, saw his own sympathetic needle moving of itself to every letter which that of his correspondent pointed at. By this means they talked together across a whole continent, and conveyed their thoughts to one another in an instant, over cities or mountains, seas or deserts.
第 193 頁 - ... country. On one side we overlooked innumerable lakes and streams, the spring of the Colorado of the Gulf of California ; and on the other was the Wind river valley, where were the heads of the Yellowstone branch of the Missouri ; far to the north, we...
第 130 頁 - Secretary of State, Secretary of the Treasury, Secretary of War, Secretary of the Navy...