. Life and work at the Great Pyramid during the months of January, February, March, and April, 1865 : with a discussion of the facts ascertained . PI. SECT. IV.] STANDARDS OP ANGLE. 209 CA, or 7023 British inches, is the sum of thevertical height 5820 inches, and the depression ofthe floor of the subterranean chamber below thePyramid pavement, or 1203 inches, as determinedon page 74. And the angle at c, = 38° 8 46, or half theangle at the summit of the Pyramid, likewisealready given in Division i. With these elements, then, the angle at a, or theintersection-point on the floor of the
. Life and work at the Great Pyramid during the months of January, February, March, and April, 1865 : with a discussion of the facts ascertained . PI. SECT. IV.] STANDARDS OP ANGLE. 209 CA, or 7023 British inches, is the sum of thevertical height 5820 inches, and the depression ofthe floor of the subterranean chamber below thePyramid pavement, or 1203 inches, as determinedon page 74. And the angle at c, = 38° 8 46, or half theangle at the summit of the Pyramid, likewisealready given in Division i. With these elements, then, the angle at a, or theintersection-point on the floor of the subterraneanchamber, maybe computed, and found = 75° 15 lof ordinary, , Greek-Alexandrine degrees ;—andthese, reduced to Pyramid degrees, are = 209*03°. If we now therefore turn to page 6 2, for the num-ber of masonry courses in the whole Pyramid, theywill be found to be stated, subject to a small resi-dual uncertainty, as 210 + 2 or 3 : including, infact, the very number computed; and forming asgood a numerical proof of the quadrant having beenintended to be divided into 250 degrees, as hadbeen before deduced for the cubit being divided into25
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