Procedures and Equipment. Preparation, Purification and Storage of Some Solvents and Reagents. Generation of Metallated Acetylenes, Allenes and Cumulenes. Reactions of Metallated Acetylenes and Allenes with Alkylating Agents. Reactions with Aldehydes and Ketones. Carboxylation, Acylation and Related Reactions. Silylation, Stannylation and Phosphorylation. Sulfenylation and Related Reactions. Halogenation of Acetylenes. Acetylenes, Allenes and Cumulenes by Elimination Reactions. Cumulenes by Dehalogenation of Geminal Dihalogenocyclopropanes. Acetylenic and Allenic Derivatives by Substitution on sp- and sp2-Carbon. Aminoalkylation of Acetylenic Compounds. Cross-Coupling between 1-Alkynes and 1-Bromo-1-alkynes. Copper Halide-Catalysed Oxidative Coupling of Acetylenes. Transition Metals-Catalysed Couplings of Acetylenes with sp2-Halides. Base-Catalysed Isomerisations of Acetylenic Compounds. Allenic Compounds by 2,3- and 3,3-Sigmatropic Rearrangements. Miscellaneous Reactions of Acetylenic and Allenic Compounds. Transformation of Functional Groups in Acetylenic and Allenic Compounds.