Acyclic Sulfur(II)-Nitrogen Compounds and Derivatives.- 1 Sulfur Imide and Derivatives.- 2 Disulfur Nitride, Nitrogen Disulfide, SNS.- 3 Dithionitrous Acid and Derivatives.- 4 Salts of the Dithionitryl Ion (1+), [S=N=S]+.- 5 Dinitrogen Sulfide, SNN.- 6 N-Thionitroso-diorganylamines and Derivatives.- 7 Thiohydroxylamine and Derivatives.- 8 Thiooximes and Derivatives.- 9 Thiofulminic Acid and Derivatives.- 10 Isohypothiocyanous Acid Ion (1?), OCNS?.- 11 Thionitrous Acid and Derivatives.- 12 Sulfur Amide Halogenides and Derivatives.- 13 Sulfur Amide Hydroxide Derivatives, N,N-Substituted Amino-organyloxy-sulfanes.- 14 S-Phosphorus-Substituted Thiohydroxylamines and Derivatives.