The American Journal of Science, Volumes 175-176J.D. & E.S. Dana, 1908 - Science |
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Common terms and phrases
actinium actinolite activity alcohol American amount of radium appears beds benzoic cent Chem chemical chloride chlorite cm³ color containing crystals cumberlandite cycad deposits described determined diameter dilute elephants Eocene ester evaporation experiments fauna feet feldspar film filtered filtrate flask formation Fort Benton fossils gabbro genus Geol Geological gram heat hulsite hydrochloric acid ilmenite inches indicated ionium iron JOUR Journal lake later layers limestone lower magnetite mastodon material matrix method miles mineral Museum observed obtained occurs olivine original oxalates oxide paper particles plates polonium portion potassium powellite precipitated present Professor radio-active radium emanation region residue rock sandstone separated shale shown shows Silurian skull sodium solution species specimens Stegodon strata structure substance sulphate sulphuric acid surface Table temperature terraces thickness thin thorium tion Triceratops tusks upper uraninite uranium valley veins zinc
Popular passages
Page 170 - they are exceeding wise,' that they are ' but a feeble folk, yet make their houses in the rocks.
Page 460 - Memorials of Charles Darwin : a Collection of Manuscripts, Portraits. Medals, Books, and Natural History Specimens to commemorate the Centenary of his Birth and the Fiftieth Anniversary of the Publication of
Page 186 - ... of the soil; a race of animals were in being, huge as the frowning precipice, cruel as the bloody panther, swift as the descending eagle, and terrible as the angel of night.
Page 151 - Experimental work conducted in the chemical laboratory of the United States fuel-testing plant, St. Louis, Mo., January 1, 1905, to July 31, 1906, by NW Lord.
Page 462 - ... considerable limits, thereby increasing both the scope and sensitiveness of the manometer. The sensitiveness in our instrument with this arrangement was about three times that of the Reichsanstalt. (3) The expansion of the bulb material was determined with great care and is probably accurate within 0.5 per cent. (4) The unheated space between the bulb and manometer has been reduced until the total correction in this hitherto uncertain region amounts to less than 4° at 1100°.
Page 97 - BULLETIN 339. The purchase of coal under government and commercial specifications on the basis of its heating value, with analyses of coal delivered under government contracts, by DT Randall. 1908. 27 pp. 5 cents. BULLETIN 343.
Page 189 - ... respectively. Trilophodon (Figs. 195, D, D'; 202) is the third stage in proboscidean evolution, if we omit Dinotherium, and is well represented by the Miocene Trilophodon angustidens of which a splendid specimen from Gers, France, is preserved in the museum of the Jardin des Plantes at Paris (see Pl.
Page 176 - ... must," during which they become very dangerous and sometimes destroy the keepers in their paroxysms of rage. Ultimately all male elephants become surly and intractable; in the wild state such are known as rogues and live apart from their kind until they die. The great Asiatic elephant "Gunda
Page 452 - ... obtained at different times from the same dealer and of the same (nominal) purity. This may serve to emphasize more than ever before the desirability of a provision, preferably by some national bureau of standards, for standard metals, the uniform purity of which can be absolutely depended upon, and in terms of which such constants can be expressed. In the absence of such a provision, it is difficult to see just how to make the gas scale conveniently available for general use in its full accuracy....
Page 179 - Increase in size and in the development of pillar-like limbs to support the enormous weight. Increase in size and complexity of the teeth and their consequent diminution in numbers and the development of the peculiar method of tooth succession. The loss of the canines and of all of the incisor teeth except the second pair in the upper and lower jaws and the development of these as tusks. The gradual elongation of the symphysis or union of the lower jaws to strengthen and support the lower tusks while...