The primary objectives of this paper are to deal with Stravinsky's use of the trombone and to study the different methods of scoring for the instrument which he has employed in his works. In order to make this discussion more meaningful, the first chapter contains a brief history of the use and the development of the instrument from the fifteenth century up until 1900. In the second chapter Stravinsky's major works are divided into three periods, and each is individually discussed. The general characteristics common to the related major works are pointed out to provide an understanding of each period. The remainder of the paper is devoted to a study of Stravinsky's trombone scoring in three of his major works, one from each period. A concluding chapter summarizes his writing for the trombone as exemplified by these three works, and surveys the scoring for trombone in some of his other works.