1. MASS SPECTRA OF THE NEW HYDRAZIDO- HYDRAZONES OBTAINED BY THE CONDENSATION OF THE IZONICOTINIC ACID HYDRAZIDE (HIN) WITH CITRAL, (+)–CARVONE AND ß-IONONE. Authors: IOAN OPREAN, VALER FĂRCĂŞAN, IOAN BÂTIU.2. ANALYSIS IN TERMS OF THE WILSON, NRTL (NON RANDON TWO LIQUIDS) AND UNIQUAC MODELS OF THE EXPERIMENTAL VAPOR - LIQUID EQUILIBRIUM DATA IN BINARY AND TERNARY SYSTEMS CONTAINING {(1R,4S)-(+)-FENCHONE, METHYL CHAVICOL AND TRANS-ANETHOLE}. Authors: IOAN BÂTIU.3. ANALYSIS IN TERMS OF INTERMOLECULAR FORCES OF THE THERMODYNAMIC PROPERTIES OF THE MIXTURES CONTAINING (1R,4S)-(+)-FENCHONE, METHYL CHAVICOL AND TRANS-ANETHOLE. Authors: IOAN BÂTIU.