The Naturalists' Leisure Hour and Monthly Bulletin1879 |
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Side 1
... iron pseudo- morph after pyroxene recently discovered by Dr. G. A. Konig . Crystals , 50c . to $ 1.00 each . HUNTILITE is a new species recently discov- ered in immense quantities in the ore of Silver Islet . I shall have some as soon ...
... iron pseudo- morph after pyroxene recently discovered by Dr. G. A. Konig . Crystals , 50c . to $ 1.00 each . HUNTILITE is a new species recently discov- ered in immense quantities in the ore of Silver Islet . I shall have some as soon ...
Side
... Iron imparts to borax in the oxydizing flame a dark red- brown color while the bead is hot , which pass- es into pure yellow at the ordinary tempera- ture of the air . Under the same conditions manganese produces a purplish - red glass ...
... Iron imparts to borax in the oxydizing flame a dark red- brown color while the bead is hot , which pass- es into pure yellow at the ordinary tempera- ture of the air . Under the same conditions manganese produces a purplish - red glass ...
Side
... iron and chromium . The former offers no difficulty and gives equally accurate results with the most approved gravimetric methods . I shall next extend it to copper ores . TIMES have changed very much since a reli- gions mob destroyed ...
... iron and chromium . The former offers no difficulty and gives equally accurate results with the most approved gravimetric methods . I shall next extend it to copper ores . TIMES have changed very much since a reli- gions mob destroyed ...
Side
... Iron Ore Belts , & c . 202 pp . maps and sect . .60 6 D. Prime , Iron Ore of Lehigh Co. 83 pp . map and 8 ill . .30 7 D. D. Prime , Brown Hematite of Lehigh Co. 114 pp . 5 maps and 5 pls . .35 8 E. Hunt , T. Sterry , Trap Dykes and ...
... Iron Ore Belts , & c . 202 pp . maps and sect . .60 6 D. Prime , Iron Ore of Lehigh Co. 83 pp . map and 8 ill . .30 7 D. D. Prime , Brown Hematite of Lehigh Co. 114 pp . 5 maps and 5 pls . .35 8 E. Hunt , T. Sterry , Trap Dykes and ...
Side
... Iron ) , N. Y. Mine , Mich . 19 Limonite , Trigg Co. , Ky . 20 Siderite , Spathic Ore , Roxbury , Mass . 21 Chalcopyrite ( Yellow Copper Ore ) Colorado . 22 Galena , Washington Co. , Mo. 23 Graphite ( Black Lead ) , Colfax Co. , New ...
... Iron ) , N. Y. Mine , Mich . 19 Limonite , Trigg Co. , Ky . 20 Siderite , Spathic Ore , Roxbury , Mass . 21 Chalcopyrite ( Yellow Copper Ore ) Colorado . 22 Galena , Washington Co. , Mo. 23 Graphite ( Black Lead ) , Colfax Co. , New ...
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Populære avsnitt
Side 4 - The sin of Judah is written with a pen of iron, and with the point of a diamond : it is graven upon the table of their heart, and upon the horns of your altars ; whilst their children remember their altars and their groves by the green trees upon the high hills.
Side 16 - ... invisible. These animals are of a great variety of shapes and sizes, and in such' prodigious numbers, that in a short time the whole surface of the rock appears to be alive and in motion. The most common of the worms at SCALY-CLAWED CRUSTACEAN. Loo Choo was in the form of...
Side 13 - Insect lover of the sun, Joy of thy dominion ! Sailor of the atmosphere; Swimmer through the waves of air; Voyager of light and noon; Epicurean of June; Wait, I prithee, till I come Within earshot of thy hum, — All without is martyrdom.
Side 12 - ... the relations of the sexes, and the relations of parents to children. The superstitions, also, from the more important myths down to the charms in common use, should be indicated. Next should come a delineation of the industrial system: showing to what extent the division of...
Side 11 - Men read books on this topic, and attend lectures on that ; decide that their children shall be instructed in these branches of knowledge, and shall not be instructed in those ; and all under the guidance of mere custom, or liking, or prejudice ; without ever considering the enormous importance of determining in some rational way what things are really most worth learning.
Side 11 - The births, deaths, and marriages of kings, and other like historic trivialities, are committed to memory, not because of any direct benefits that can possibly result from knowing them ; but because society considers them parts of a good education — because the absence of such knowledge may bring the contempt of others.
Side 12 - But it is not true that the facts of science are unpoetical ; or that the cultivation of science is necessarily unfriendly to the exercise of imagination and the love of the beautiful. On the contrary, science opens up realms of poetry where to the unscientific all is a blank. Those engaged in scientific researches constantly show us that they realise not less vividly, but more vividly, than others, the poetry of their subjects.