Book excerpt: The Report is intended to update DMIC Report S-21, which describes 1967 research on fiber-reinforced metal-matrix composites. A two-page summary outlines the current state of the art of these composites, and is followed by a discussion of 1968 research on the composites, arranged according to matrix- and fiber-materials. The bulk of the report consists of summaries of 1968 research programs, arranged by programs. (Author).