April 1974 Issue [About this issue] About this issue Download PDF Adjust Share by Robert Shnayerson, R. K., Subscribe or log in to continue reading. Tags "Wraparound" (Harper's) 20th century Conservation of natural resources Energy conservation Humor Minnestoa Pyramids Stewart Brand United States Waste minimization More from Robert Shnayerson Presidential perspective In search of masculinity The American absence: two letters from Vietnam Adjust Share