1. H. J. Deuel, Jr.,The Lipids, Vol. III:Biochemistry (Interscience Publishers, Inc., New York 1957).
2. A. J. Birch,Biosynthetic Relations of Some Natural Phenolic and Enolic Compounds, inL. Zechmeister,Progress in the Chemistry of Organic Natural Products, Vol. XIV (Springer Verlag, Vienna, Austria 1957);A. J. Birch, R. A. Massy-Westropp, R. W. Rickards, and H. Smith, J. chem. Soc. (1958), 360.
3. R. B. Woodward,The Structure and Biogenesis of the Macrolides, A New Class of Natural Products, inFestschrift Arthur Stoll (Birkhäuser, Basel 1957).
4. V. Musílek andV. Ševčik, Naturwiss.45, 86 (1958).
5. H. Rilling, T. T. Tchen, andK. Block, Proc. Nat. Acad. Sci.44, 167 (1958).