Nomenclature of Boron-Nitrogen Compounds.- I: Amine-Boranes and Related Structures.- A. The Boron-Nitrogen Dative Bond.- B. Amine-Boranes Derived from BH3?nR n.- C The Chemistry of the Diammoniate of Diborane and Related Structures.- D. Adducts of Trihalogenoboranes with Nitrogen Donor Molecules.- E. Amine Adducts of -Oxyboranes, Boroxazolidines and Ring Systems with the Annular N?B Bond.- II: Aminoboranes, ?N—B?.- A. The Nature of the B—N Bond in Aminoboranes.- B. Monoaminoboranes.- C. Trimeric Aminoboranes.- D. Bisaminoboranes.- E. Trisaminoboranes.- P. Diborylamines.- G. Hydrazino- and Azido-Boranes.- H. Amino Derivatives of Diborane(4).- III: The Borazines.- A. Introduction.- B. The Parent Borazine, (—BH—NH—)3.- C. Symmetrically Substituted Borazines, (—BR—NR’—)3.- D. Unsymmetrically Substituted Borazines.- E. Polynucleated Borazines.- IV: ?-Bonded Cyclic Systems of Boron and Nitrogen (other than borazines).- A. General Remarks.- B. s-Diaza-Diborines.- C. 1,3,4-Triaza-2,5-Diborines.- D. 1,2,4,5-Tetraza-3,6-Diborines.- E. s-Tetraza-Tetraborines.- V: Heterocyclic ?-Bonded Systems Containing Boron and Nitrogen.- A. Introductory.- B. Heterocycles with Aminoborane Linkages.- C. 1,3,2-Benzodiazaborolidines and Related Compounds.- D. Heteroaromatic Boron-Mtrogen Compounds.- VI: Boron Nitride.- A. Preparation and Structure.- B. The Nature of the Coplanar B—N Bond in Hexagonal Boron Nitride.- C. Physical Properties of Hexagonal Boron Nitride.- D. Chemical Reactions of Boron Nitride.- A. General Remarks.- Author Index.- Table Index.