The Dreams in the Witch-House

a discussion of possible freakish curvatures in space, and of theoretical points of approach or even contact between our part of the cosmos and various other regions as distant as the farthest stars or the transgalactic gulfs themselves--or even as fabulously remote as the tentatively conceivable cosmic units beyond the whole Einsteinian space-time continuum. Gilman's handling of this theme filled everyone with admiration, even though some of his hypothetical illustrations caused an increase in the always plentiful gossip about his nervous and solitary eccentricity. What made the students shake their heads was his sober theory that a man might--given mathematical knowledge admittedly beyond all likelihood of human acquirement--step deliberately from the earth to any other celestial body which might lie at one of an infinity of specific points in the cosmic pattern.

Such a step, he said, would require only two stages; first, a passage out of the three-dimensional sphere we know, and second, a passage b