Reviews of [i]Russian Science in the 21st Cengtury[/i] by Sergei Gouschev and Mikhail Vassiliev; [i]The Challenge of the Sea[/i] by Arthur C. Clarke; [i]The Future of Man[/i] by Peter Bryan Medawar; [i]Can Man Be Modified?[/i] by Jean Rostand; [i]The Year's Best SF[/i] by Judith Merril; [i]Mount Analogue[/i] by René Daumal; [i]Eight Keys to Eden[/i] by Mark Clifton; [i]The Unexpected Dimensions[/i] by Algis Budrys; [i]The Sioux Spaceman[/i] Andre Norton; [i]And Then the Town Took Off[/i] by Richard Wilson; [i]To the End of Time and Other Stories[/i] by Robert Moore Williams; [i]World of the Masterminds[/i] by Robert Moore Williams; and [i]The Worlds of Clifford Simak[/i] by Clifford D. Simak.