understand that for a time his mind was greatly confused.
At first he was distinctly under the impression that he was still in the classroom. He perceived quite distinctly the surprise of the boys and the entry of Mr. Lidgett. He is quite positive upon that score. He did not hear their remarks; but that he ascribed to the deafening effect of the experiment. Things about him seemed curiously dark and faint, but his mind explained that on the obvious but mistaken idea that the explosion had engendered a huge volume of dark smoke. Through the dimness the figures of Lidgett and the boys moved, as faint and silent as ghosts. Plattner's face still tingled with the stinging heat of the flash. He was, he says, "all muddled." His first definite thoughts seem to have been of his personal safety. He thought he was perhaps blinded and deafened. He felt his limbs and face in a gingerly manner. Then his perceptions grew clearer, and he was astonished to miss the old familiar desks and other schoolroom furniture about him. Only dim, uncertain, grey shapes stood in the place of these. Then came a thing that made him shout aloud, and awoke his stunned faculties to instant activity. Two of the boys, gesticulating, walked one after the other clean through him! Neither manifested the slightest consciousness of his presence. It is difficult to imagine the sensation he felt. They came against him, he says, with no more force than a wisp of mist.
Plattner's first thought after that was that he was dead. Having been brought up with thoroughly sound views in these matters, however, he was a
