Publications, Volume 3

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Page 364 - An exceedingly important paper dealing with the problem from the physical side is the one on a series of transcontinental gravity determinations by Putnam f with the appended notes by Gilbert. According to Mr. Putnam, "the result of this series would . . seem to lead to the conclusion that general continental elevations are compensated by a deficiency of density in the matter below sealevel, but that local topographical irregularities, whether elevations or depressions, are not compensated for, but...
Page 239 - ... consists of a copper bolt, threequarters of an inch in diameter and four inches long, stamped on the end with the letters "GSC-, BM...
Page 280 - In second course of stonework above ground, in east end of south face of north abutment of Grand Trunk railway bridge at international boundary, 400 feet north of Norton Mills...
Page 25 - ... (A geometrical theorem states that the angle between a tangent and a chord to the tangent point is equal to half the angle subtended by the chord at the centre of the circle.) BC 90° Centre Figure 17.
Page 283 - In east end of north face of cap-stone on north end of square stone culvert under Grand Trunk railway, 5...
Page 149 - In second course of stonework above bridge-seat, in east end of south face of retaining wall behind north abutment of Maine Central railroad bridge over...
Page 273 - Transcontinental railway, opposite a point on Canadian Pacific railway at second telegraph pole northwest of mile-post 43 from...
Page 276 - In second course of stonework below top, in southeast face of southeast curved retaining wall of...
Page 149 - In east face of large boulder, 20 feet east of Maine Central railroad track, 160 feet south of a wooden culvert...
Page 364 - H is the elevation above sea-level, r is the radius of the earth, 5 is the density...

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