621 General RefercHces 



78 The Biosynthesis and Function of the Carotenoid Pigments, T. W. 

 Goodwin, Advances in Enzymology 21 295-361 (1959). 



79 "Naturally Occurring Quinones," R. Thomson, Butterworths, Lon- 

 don, 1958. Literature covered through 1956. 



80 Occurrence and Biochemical Behavior of Quinones, O. Hofmann- 

 Ostenhof, Fortschr. Chem. org. Naturstoffe 6 159-224 (1950). 



81 Anthraquinone Pigments Produced by Molds, Shoji Shibata, Kagaku 

 (Science) 26 391-396 (1956). A review with 41 references. 



82 Tetracyclic Triterpenes, E. Jones and C. Halsall, Fortschr. Chem. 

 org. Naturstoffe 12 68-96 (1955). 



83 Chlorine Containing Metabolic Products, I. Yoshida, Kagaku no 

 Ryoiki (J. Japan. Chem.) 5 406-409, 419 (1951). A review with 19 

 references. 



84 Vitamins in Microorganisms, J. Van Lanen and F. W. Tanner, Jr., 

 Vitamins and Hormones 6 163-224 (1948). A review with 361 ref- 

 erences. 



85 "Special Publication No. 12 of the English Chemical Society," 1958, 

 especially The Biosynthesis of Aromatic Compounds from C, and C, 

 Uiiits, A. J. Birch and Herchel Smith, pp. 1-13, and Biosynthesis of 

 Aromatic Ring Systems from C^ and C, fragments, Gosta Ehrensvard, 

 pp. 17-31. 



86 "The Structural Relations of Natural Products," R. Robinson, Oxford 

 University Press, London, 1955, 150 pp. 



87 Biosynthetic Relations of Phenolic and Enolic Compounds, A. J. 

 Birch, Fortschr. Chem. org. Naturstoffe 14 186-216 (1957). 



88 "Perspectives in Organic Chemistry," Alexander Todd (Ed.), Inter- 

 science Publishers, New York, 1956, especially Biosynthetic Theories 

 in Organic Chemistry, A. J. Birch, pp. 134—155, and Microorganisms 

 in Organic Chemistry, Karl Folkers, pp. 392-430. 



89 A Region of Biosynthesis, H. Raistrick, Proc. Roy. Soc. A 199 141- 

 168 (1949). A review of fungal metabolites with 157 references. 



90 Microbiological Conversions of Steroids, Drurey H. Peterson, Record 

 Chem. Prog. 17 211-240 (1956). 



91 Transformations of Steroids by Molds, Gilbert Shull, Trans. N. Y. 

 Acad. Sci. 19 147-72 (1956). A review with 63 references. 



92 Microbiological Alterations of Steroids, P. Enthoven, Chem. Weekblad 

 52 166-172 (1956). A review with 40 references. 



93 Microbiological Conversions of Steroids for Technical Purposes, 

 E. Vischer and A. Wettstein, Angew. Chem. 69 456-463 (1957). A 

 review with 70 references. 



94 Enzymic Transformations of Steroids by Microorganisms, E. Vischer 

 and A. Wettstein, Adv. Enzymol. 20 237-282 (1958). A review. 



