And this he, Conrad Flinder had done; Conrad Flinder, the gray- bearded old man, to whose health the Hussar Colonel drank last night. He suddenly began to laugh, ever louder and louder, his teeth chattering, his lower jaw jumping up and down, as if it were suspended on a rubber string. He thrust himself at the door forcing it open, and rushed out in dishevelled condition. Running along the garden tracks, he rebounded from the trees, fell, rose and ran on toward the house, ceaselessly laughing…

III

IN bold-type captions appeared the news of Professor Flinder’s suicide in the morning newspapers. The newsboys announced this with piercing and shrieking voices, and waving their sheets, they tucked them under the arms of the passers-by. Deriugin had found out about the dreadful occurrence, while on his way to work. Flinder! Cool-headed, stone-calm Flinder, resembling a machine rather than a man!

The news stunned the engineer. He sensed in it an event more significant than could be deduced from the newspapers accounts, which ascribed the incident to a sudden' attack of mental alienation. This, they deduced from the note left by the professor and from the unintelligible phrases written therein, which, in all probability, bore witness to the chaos of his last thoughts. “General destruction!.. World conflagration!.. Aston was right… I did it… It grows larger each second…” While this was merely a string of words, the incoherent phrases produced an overwhelming impression upon Deriugin. He was shaken with fear. In these words he read of an incredible and absurd menace, which suddenly appeared to him as a possibility. He quickened his pace, jostling his way through the human tide, toward the Institute where, at the very entrance to the laboratory, he met Hinez, the assistant.

“What happened?” he inquired of the assistant who stood before the locked door. The latter shrugged his shoulders.

“I know as much as you do, colleague. At any rate, this is a colossal loss to Germany — it is almost irreplaceable.”

“A dreadful occurrence, indeed,” returned the Russian, “but I am afraid that this is not the end of it..

“What do you mean to say?”

“It seems to me that something has happened in the laboratory. Have you any idea, colleague, what special work the professor was doing there yesterday?”

Hinez suspiciously looked up at the speaker and replied reluctantly:

“I believe he was making preparations to test the newly installed apparatus, which was to accelerate the breaking up of the atoms of several gases…”