The Infra-Medians

The Infra-Medians is a science fiction short story written by Sewell Peaslee Wright. 

My second glance around the room was more deliberate. To my right were the big generators and the switchboards, gleaming with copper bus-bar, and intricate with their tortuous wiring. Directly before me was the long work-bench that ran the full length of the room, littered with a dozen set-ups for as many experiments. At my left was a sizable piece of apparatus that was strange to me; on a small enameled table beside it was a rather large sheet of paper, weighted down with a cracked Florence flask.