STUDIES ON THE CHEMICAL CONSTITUENTS OF THE ABSOLUTE OIL OF DENDRANTHEMA VESTITUM FLOWER STUDIES ON THE ABSOLUTE OF THE DRY FLOWER OF DENDRANTHEMA INDICUM VAR. AROMATICUM The Minor Chemical Components of the Absolute Oil from the Flower of Jasminum sambac L. Wu Cheng-(L.) Aiton Analysis on the Constituents of the Absolute Oil of Lysimachia foenum-graceum Hance and Study on the Application of the Insecticidal Activity of Its Components