O'Keefe reviews all tektite literature up to 1976. Tektite information is found in an exceptionally wide range of sources in the literature. The structure of the strewn fields is partly in oceanographic literature, partly in Czech astronomical publications, and partly in the proceedings of the Royal Societies of South Australia, Victoria and Western Australia, as well as the usual geochemical and geophysical journals. A crucial remark about the general form of tektites is in the aerodynamic