The seeds ofVernonia volkameriaefolia contain 20% oil and are a good source of epoxidized triglycerides. The vernolic acid (cis‐12, 13‐epoxy‐cis‐9, 10‐octadecenoic acid) content of the oil was 63.5%. The structure of this compound was established by chemical and physical methods, including a study of the mass spectral fragmentation of the parent compound and its derivatives.

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Long-chain enolacetates were prepared by refluxing the keto fatty acids with acetic anhydride and p-toluene sulfonic acid (p-TSA). 10-Oxoundecanoic and 2-o:iohexadecanoic acids gave mainly 10acetoxy-10-undecenoic and 2-acetoxy-2-hexadecenoic acids, respectively. On the other hand, 12-oxooctadecanoic acid on similar treatment was assumed to yield an isomeric mixture of 12-acetoxy-12(ll)-octadecenoic acids. The structure of the individual reaction products were established by spectral studies. ABSTRACTSeed oils of Urena repanda and Tbespesia lampas (Malvaceae) were found to contain malvalic (2.6, 0.6%) and sterculic (1.1, 2.1%) acids, respectively, besides the normal fatty acids. Cooccurrence of these two acids were established by gas chromatographic analysis of silver nitrate/methanol-treated methyl esters using Sterculia foetida esters as a reference standard.

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Nuvan (0.1%) and Endrin (0.15%), 1135 litres per hectare were most effective in controlling the fully matured red hairy caterpillar Amsacta moorei Butl. BHC, Carbaryl, Thiodan and Sumethion were of less effectiveness. Zusammenfassung Zur Bekämpfung von Amsacta moorei Butl. (Lep., Arctiidae) in Indien Nuvan (0,1 %) und Endrin (0,15 %), in einer Aufwandmenge von 1135 Litern pro Hektar, zeigten bei der Bekämpfung der erwachsenen Raupen von Amsacta moorei Butl., eines polyphagen landwirtschaftlichen Schädlings Indiens, die besten Ergebnisse. Hexa‐Mittel, Carbaryl, Thiodan und Sumithion waren weniger wirksam.