"In plain long-distance clairvoyance," he explains, "I appear to see through a tunnel which is cut through all intervening physical objects, such as towns, forests and mountains. This tunnel seems to terminate just inside Mr. Brown's study, for instance, and I can only see what is actually there, and am not able to walk about the house, or use any other faculty but that of sight. In fact, it is almost like extended physical sight on a flat earth void of obstacles. (This tunnel also applies to time as well as to space.) " It is difficult to account for the restrictions, for which the composition of the Double may be responsible. The tunnel is a very common figure with projectionists, and, as had been suggested, may have in flight a symbolic meaning. "In Mental-body-travelling," writes Mr. Turvey, "the 'I’ appears to leave the 'Me', and to fly through space at a velocity which renders the view of the country over which 'I' pass very indistinct and blurred. The 'I' appears to be about two miles above the earth, and can only barely distinguish water from land, or forest from city; and only then if the tracts perceived be fairly large in area. Small rivers or villages would not be distinguishable. When 'I' arrive, say, at Mr. Brown's house in Bedford, 'I' am not only able to see into one room, but am able to walk about the house, see the contents of various rooms and boxes, touch the curtain, and feel that it is made of velvet, move a table or bed, smell an escape of gas, diagnose a disease, look into the 'surroundings' of Mr. Brown, and, in a few cases, 'I' have been visible. 'I' also hear parts of conversations; and on several occasions 'I have controlled a medium, and introduced myself through his organism to people present, and have carried on a conversation with them." Here we have a perfect description of Etheric flight. When Mr. Turvey's Double was capable of physical exertion