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Rh the rails on which they ran, I saw on the upper platform whither the rails led several machines in general appearance not unlike some of those at the other end. The glass which I was using was very powerful, much more powerful than any field-glass I had ever seen. Still, I could not observe with any such exactness as if I were standing by the machines. The car that I sat in, although there was not a breath of wind, was not absolutely still. I should not perhaps have noticed this if I had sat still and talked, or even read, but the moment I began to observe closely some object not on the car, I became conscious of a motion such as would be felt at sea on a calm day if there were a long but very gentle swell.

I saw with enough exactness, however, to conclude that the processes which were being carried on here were not mechanical, but most likely chemical. I could see many jars and retorts and instruments of similar aspect, and I thought I could make sure that electricity was being largely applied, and that some strange use was being made of light. It seemed as if there were some substances in certain small vessels on which now and then light greatly magnified was being thrown. These vessels were arranged in order within the machines in such way that they could be subjected