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Updated: June 18, 2025
To begin with, Bowers broke the only hypsometer thermometer, and so they were left with nothing to check their two aneroids. Then during the first part of the march they got among sastrugi which jerked the sledges about, and so tired out the second team that they had great difficulty in keeping up. And, finally, they found more crevasses and disturbances during the afternoon.
There is something definite and uncompromising about the boiling-point hypsometer; no tapping will make it rise or fall; it reaches its mark unmistakably and does not budge. The reading of the mercurial barometer is a slower and more delicate business.
According to the hypsometer and our aneroid barometer we were at a height of 11,075 feet this was in lat. 87° 51'. On December 8 the bad weather came to an end, the sun shone on us once more, and we were able to take our observations again. It proved that the observations and our reckoning of the distance covered gave exactly the same result namely, 88° 16' S. lat.
Rise for day ?about 250 ft. or 300 ft. Hypsometer, 8000 ft. The first two hours of the afternoon march went very well. We lost sight of the big pressure ridge, but to-night another smaller one shows fine on the 'port bow, and the surface is alternately very hard and fairly soft; dips and rises all round.
In it we left a letter addressed to His Majesty, King Haakon VII, in which we reported what we had done. The next person to come there will take the letter with him and see to its delivery. In addition, we left there several pieces of clothing, a sextant, an artificial horizon, and a hypsometer. On December 17th we were ready to return.
In the thick, driving snow we could see absolutely nothing; but we felt that, contrary to what we had expected namely, a further ascent we were going rapidly downhill. The hypsometer that day showed a descent of 600 feet. We continued our march next day in a strong wind and thick, driving snow. Our faces were badly frozen. There was no danger, but we simply could see nothing.
They included the Mummery tent with pegs and poles, the mountain-mercurial barometer, the two Watkins aneroids, the hypsometer, a pair of Zeiss glasses, two 3A kodaks, six films, a sling psychrometer, a prismatic compass and clinometer, a Stanley pocket level, an eighty-foot red-strand mountain rope, three ice axes, a seven-foot flagpole, an American flag and a Yale flag.
In the tent a medley of articles had been left: three half bags of reindeer containing a miscellaneous assortment of mitts and sleeping-socks, very various in description, a sextant, a Norwegian artificial horizon and a hypsometer without boiling-point thermometers, a sextant and hypsometer of English make. 'Left a note to say I had visited the tent with companions.
The temperature of the thermometer on the barometer was exactly +32° F. At the same time, inside the tent we got the water to boiling and took a reading with the hypsometer. Water boils at sea level at a temperature of 212° F. Here it boiled at 174° F. After taking the reading we greedily drank the water which had been heated for the hypsometer.
Henry J. Green, of Brooklyn, capable of recording only such air pressures as one might expect to find above 12,000 feet; a hypsometer loaned us by the Department of Terrestrial Magnetism of the Carnegie Institution of Washington, with thermometers especially made for us by Green; a large mercurial barometer, borrowed from the Harvard Observatory, which, notwithstanding its rough treatment by Mr.
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