Hot as it was, they tested it in a crucible with all the proper reagents. Water did nothing. Hydrochloric acid was the same. Nitric acid and even aqua regia merely hissed and spattered against its torrid invulnerability. Ammi had difficulty in recalling all these things, but recognised some solvents as I mentioned them in the usual order of use. There were ammonia and caustic soda, alcohol and ether, nauseous carbon disulphide and a dozen others, but although the weight grew steadily less as time passed, and the fragment seemed to be slightly cooling, there was no change in the solvents to shew that they had attacked the substance at all. It was a metal, though, beyond a doubt. It was magnetic, for one thing; and after its immersion in the acid solvents there seemed to be faint traces of the Widmannstätten figures found on meteoric iron. When the cooling had grown very considerable, the testing was carried on in glass; and it was in a glass beaker that they left all the chips made of the original fragment during the work. The next morning both chips and beaker were gone without trace, and only a charred spot marked the place on the wooden shelf where they had been.
All this the professors told Ammi as they paused at his door, and once more he went with them to see the stony messenger from the stars, though this time his wife did not accompany him. It had now most certainly shrunk, and even the sober professors could not doubt the truth of what they saw. All around the dwindling brown lump near the well was a vacant space, except where the earth had caved in; and whereas it had been a good seven feet across the day before, it was now scarcely five. It was still hot, and the sages studied its surface curiously as they detached another and larger piece with hammer and chisel. They gouged deeply this time, and as they pried away the smaller mass they saw that the core of the thing was not quite homogeneous.
They had uncovered what seemed to be the side of a large coloured globule imbedded in the substance. The colour, which resembled some of the bands in the meteor’s strange spectrum, was almost impossible to describe; and it was only by analogy that they called it colour at all. Its texture was glossy, and upon tapping it appeared to promise both brittleness and hollowness. One of the professors gave it a smart blow with a hammer, and it burst with a nervous little pop. Nothing was emitted, and all trace of the thing vanished with the puncturing. It left behind a hollow spherical space about three inches across, and all thought it probable that others would be discovered as the enclosing substance wasted away.