Introduction, by R. Silverberg. The sands of time, by P. S. Miller. ... and it comes out here, by L. del Rey. Brooklyn project, by W. Tenn. The men who murdered Mohammed, by A. Bester. Time heals, by P. Anderson. Wrong-way street, by L. Niven. Flux, by M. Moorcock. Dominoes, by C. M. Kornbluth. A bulletin from the trustees, by W. Shore. Traveler's rest, by D. I. Masson. Absolutely inflexible, by R. Silverberg. The time machine (chapter 11, 12-part), by H. G. Wells.