139 ([return])
[ "The Gold-Mines of Midian," Chap. XII.]
140 ([return])
[ The chain did not part. The anchor was afterwards fished up by divers from El-Muwaylah, and its shank was found broken clean across like a carrot. Yet there was no sign of a flaw. Mr. Duguid calculated the transverse breaking strain of average anchor-iron (8 1/2 inches x 4 = 22 square inches), at 83 1/10 tons; and the tensile breaking strain at 484 tons, or 22 tons to the square inch; while the stud-length cable of 1 1/8 inch chain, 150 fathoms long, would carry, if proof, 24 tons. Captain Mohammed was persevering enough, after the divers had failed, to recover his chain when on his cruise homewards; and the Rais of the Sambúk was equally lucky.]
141 ([return])
[ "The Gold-Mines of Midian," Ch. XII. p. 317.]
142 ([return])
[ See Chap. X.]
143 ([return])
[ Lieutenant-Colonel Bolton kindly compared the specimens with those in his cabinet. The first, which was accompanied by quartz, resembled the produce of Orenburg. A Peruvian mine-proprietor had pronounced it to be "Rosicler" silver. The magnetic sand bore a tantalizing resemblance to the highly auriferous black sand of Ekaterinburg.]