In an epilogue to the 1967 research report, "Transformational Sentence-Combining" (See ED 018 405.), John Mellon considers the significance of the sentence-combining experience and answers the charges of critics--Wayne O'Neil, James Moffett, and Francis Christensen--regarding his original research findings. Mellon points out, for example, that "mature syntactic fluency," not "mature style," is the chief concern of his method of sentence-combining and that this method is not intended as a writing program, but rather as a game-like activity to enrich language development. He also indicates what he believes to be of final importance in his experiment--that (1) planned enrichment of the student's language environment does foster linguistic development, (2) syntactic fluency can be used successfully as a variable to measure this enhanced development, and (3) sentence-combining tasks do provide successful enrichment activities. (JB)