The day after that—all this was in June of ’82—the professors had trooped out again in a great excitement. As they passed Ammi’s they told him what queer things the specimen had done, and how it had faded wholly away when they put it in a glass beaker. The beaker had gone, too, and the wise men talked of the strange stone’s affinity for silicon. It had acted quite unbelievably in that well-ordered laboratory; doing nothing at all and showing no occluded gases when heated on charcoal, being wholly negative in the borax bead, and soon proving itself absolutely non-volatile at any producible temperature, including that of the oxy-hydrogen blowpipe. On an anvil it appeared highly malleable, and in the dark its luminosity was very marked. Stubbornly refusing to grow cool, it soon had the college in a state of real excitement; and when upon heating before the spectroscope it displayed shining bands unlike any known colours of the normal spectrum there was much breathless talk of new elements, bizarre optical properties, and other things which puzzled men of science are wont to say when faced by the unknown.