 This experiment was repeated upon clay taken from a brickyard in the suburbs of the city, with nearly the same result. In order to calculate with some accuracy the value of this body of •wealth, we cut out blocks of the clay, and found that on an average,...  Report of Progress - Σελίδα 3των Geological Survey of Pennsylvania - 1875Πλήρης προβολή - Σχετικά με αυτό το βιβλίο
 | American Philosophical Society - 1861 - 424 σελίδες
...value of this body of wealth, we cut out blocka of the clay, and found tbat on an average, a eubic foot, as it lies in the ground, weighs 120 pound.s, as near as niay be; making the specific gravity 1-92. The assay gives seventenths of a grain, say three cents'... | |
 | 1861 - 362 σελίδες
...contains one part gold in 1,274, cue. This experiment was repeated upon clay taken from a brickyard in the suburbs of the city, with nearly the same result....pounds, as, near as may be ; making the specific gravity i '92. The assay gives seven - tenths of a grain , say three cents' worth of gold to the cubic foot.... | |
 | William Jay Youmans - 1897 - 896 σελίδες
...calculate, with some accuracy, the value of this body of wealth, we cut out blocks of the clay, and found, on an average, a cubic foot, as it lies in the ground, weighs one hundred and twenty pounds as near as may be. The assay gives seven- tenths grain, say three cents'... | |
 | 1861 - 968 σελίδες
...contains one part gold in 1,224,000. This experiment was repeated upon clay taken from a brickyard in the suburbs of the city, with nearly the same result....pounds, as near as may be ; making the specific gravity 1 -92. The assay gives seven-tenths of a grain, say three cents' worth of gold to the cubic foot. Assuming... | |
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