136 Perspecfives in Microbiology 



3-one and 63, 11a, 22-trihydroxybisnor-4-cholen-3-one by Rhizo- 

 pus. J. Am. Chem. Soc. (in press). 



18. Meister, P. D., Peterson, D. H., Murray, H. C, Eppstein, S. H., 

 Reineke, L. M., Weintraub, A., and Leigh, H. Marian. Micro- 

 biological transformation of steroids: II. The preparation of 

 lla-hydroxy-17a-progesterone. /. A7n. Chem. Soc, 75:55-57, 

 1953. 



19. Meister, P. D., Peterson, D. H., Murray, H. C, Spero, G. B., 

 Eppstein, S. H., Weintraub, A., Reineke, L. M., and Leigh, H. 

 Marian. Microbiological transformations of steroids: V. The oxy- 

 genation of 17a-hydroxyprogesterone to 6|3, 17a-dihydroxyproges- 

 terone and 11a, 17a-dihydroxyprogesterone. /. Am. Chem. Soc, 

 75:416-418, 1953. 



20. Meister, P. D., Reineke, L. M., Meeks, R. C, Murray, H. C, 

 Eppstein, S. H., Osborn, H. M. L., Weintraub, A., and Peterson, 

 D. H. Microbiological transformations of steroids: XII. 17a- 

 hydroxylation. /. Am. Chem. Soc. (in press). 



21. Murray, H. C, and Peterson, D. H. Oxygenation of steroids by 

 Mucorales fungi. U. S. Patent 2,602,769, July 8, 1952, and Chem. 

 Abstr., 46:8331-8334, 1952. 



22. Murray, H. C, and Peterson, D. H. Steroids. U. S. Patent 2,649,- 

 400, August 18, 1953. 



23. Murray, H. C, and Peterson, D. H. Steroids. U. S. Patent 2,649,- 

 402, August 18, 1953. 



24. Perlman, D. Microbiological conversion of pregnenolone to pro- 

 gesterone. Science, 115:529, 1952. 



25. Perlman, D., Titus, E., and Fried, J. Microbiological hydroxyla- 

 tion of progesterone. /. Am. Chem. Soc, 74:2126, 1952. 



26. Peterson, D. H. Microbiological approaches to the preparation of 

 cortisone and hydrocortisone. Research, 6:309-319, 1953. 



27. Peterson, D. H., Eppstein, S. H., Meister, P. D., Magerlein, B. J., 

 Murray, H. C, Leigh, H. Marian, Weintraub, A., and Reineke, 

 L. M. Microbiological transformations of steroids: IV. The 11- 

 epimer of Compound F and other new oxygenated derivatives of 

 Reichstein's Compound S. A new route to cortisone. /. Am. 

 Chem. Soc, 75:412-415, 1953. 



28. Peterson, D. H., Eppstein, S. H., Meister, P. D., Murray, H. C, 

 Leigh, H. M., Weintraub, A., and Reineke, L. M. Microbiolog- 

 ical transformations of steroids: IX. Degradation of C21 steroids 

 to Ci9 ketones and to testololactone. /. Am. Chem. Soc, 75: 

 5768-5769, 1953. 



29. Peterson, D. H., and Murray, H. C. Microbiological oxygenation 

 of steroids at carbon 11. /. Am. Chem. Soc, 74:1871-1872, 1952. 



30. Peterson, D. H., Murray, H. C, Eppstein, S. H., Reineke, L. M., 

 Weintraub, A., Meister, P. D., and Leigh, H. M. Microbiological 

 transformations of steroids: I. Introduction of oxygen at carbon- 

 11 of progesterone. /. Am. Chem. Soc, 74:5933-5936, 1952. 



