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Updated: June 20, 2025
And now a surprise, the first I had encountered, awaited me. I registered the gravity as shown by the barycrite; and, extinguishing the electric lamp, measured repeatedly the semi-diameter of the Earth and of the halo around her upon the discometer, the inner edge of the latter affording the measurement of the black disc, which of itself, of course, cast no reflection.
In the first place, I ascertained by the barycrite and the discometer my distance from the Earth, which appeared to be about 120 terrestrial radii. The light of the halo was of course very much narrower than when I first observed it, and its scintillations or coruscations no longer distinctly visible.
The barycrite should have shown a gravity, due to the Earth's attraction, not 40 but 1600 times less than that prevailing on the Earth's surface; or, to put it in a less accurate form, a weight of 100 lbs. should have weighed an ounce. It did weigh two ounces, the gravity being not one 1600th but one 800th of terrestrial gravity, or just double what, I expected.
At length, finding that the lunar angle the apparent position of the Moon confirmed the reading of the discometer, giving the same apogaic distance or elevation, I supposed that the barycrite must be out of order or subject to some unsuspected law of which future observations might afford evidence and explanation, and turned to other subjects of interest.
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