“…The action of various oxidising agents on OsS, has been examined. 51 The optical activities of a number of tetrammine salts of bivalent platinum and palladium show that the four linkings cannot lie in a plane. 52 On the other hand, Werner's views as to the structures of the two forms of Pt(NH3),C12 are supposed to be confirmed by the behaviour of the two compounds with oxalic acid.53…”