APPENDIX.
B.
RECORD OF METEOROLOGICAL OBSERVATIONS AND ALTITUDES
ON THE MARCH FROM THE INDUS TO THE TIGRIS, THROUGH
BALOCHISTAN, AFGHANISTAN, SISTAN, KHORASSAN, AND
IRAN.
N.B.—The indications of the thermometer were recorded from an instrument placed against the wall of a tent.
The distances have been reckoned at the pace of our riding-horses, at the rate of four miles an hour.
The altitudes have been calculated approximately from the mean of the daily indications of an aneroid barometer, usually suspended in the shade of a tent.
H. W. B.
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