This collection of abstracts is part of a continuing series providing information on recent doctoral dissertations. The 33 titles deal with a variety of topics, including the following: (1) aphesis in English; (2) the linguistic representation of tone; (3) discourse structure and anaphora in written and conversational English; (4) a tagmemic analysis of conversation and the speech situation; (5) orality, literacy, and the computerization of language; (6) parallel structures in syntax; (7) the validity of definitions; (8) the metalinguistic abilities of intermediate-age students; (9) the development of subordinate structures in child language; (10) interrogative strategies--cognitive and age-related aspects of acquisition; (11) a sociolinguistic investigation of the structures of sixth grade science and arts lessons with particular attention to verification-of-learning activities; (12) systemic cohesion in published general academic English; and (13) the effects of linguistic and psychosocial factors on children's logical performance. (HOD)