carry again is the cry of almost everyone who has known the joys of doing without it. It is a somewhat strange coincidence that an experience closely resembling that of Giuseppe Costa was registered by another well-known engineer, Cromwell Fleetwood Varley, who was the inventor of many ingenious electrical instruments, and contributed largely to the successful laying of the second Atlantic cable, after the failure of the first. Dr. Nandor Fodor has retrieved the following account of his experience which Cromwell Varley gave before the Dialectical Society in 1869. Varley was ill, suffering from spasms of the throat, which had been brought on from the fumes of fluoric acid used extensively in his scientific work. He was recommended to have sulphuric ether handy at his bedside to assist his breathing in case of a throat spasm. By smelling the ether he procured instant relief, but the odour was so unpleasant that he tried chloroform instead. One night he rolled over on to his back, and the sponge, saturated with the anaesthetic, remained in his mouth. His wife was in an upstairs room, nursing a sick child. _ "After a little," Varley told the Society, "I became unconscious. I saw my wife upstairs and I saw myself on my back with the sponge in my mouth, but was utterly powerless to cause my body to move. I made by my will a distinct impression on her brain that I was in danger. Thus aroused, she came downstairs and removed the sponge, and was greatly alarmed. "I then used my body to speak to her, and I said: 'I shall forget all about it and how this came to pass unless you remind me in the morning, but be sure and tell me what made you