Editor-in-Chief MARVIN P. BRYANT Dept. of Dairy Science University of Illinois Urbana, Hlinois 61801 Area 217 333-2090 Editors ALBERT BALOWS Center for Disease Control 1600 Clifton Road, N.E. Atlanta, Georgia 30333 Area 404 633-3311 Ext. 3304 R. H. DEIBEL Dept. of Bacteriology University of Wisconsin Madison, Wisconsin 53706 Area 608 262-3053 ARNOLD L. DEMAIN Dept. of Nutrition and Food Science Room 56-123 MIT Cambridge, Massachusetts 02139 Afea 617 253-1711 NATHALIE J. SCHMIDT Viral and Rickettsial Disease Laboratory Calif. State Dept. of Public Health 2151 Berkeley Way Berkeley, California 94704 Area 415 843-7900 Ext. 606 JAMES M. TIEDJE Department of Microbiology University of Georgia Athens, Georgia 30602 Area 404 542-1434 Managing Editor ROBERT A. DAY ASM Publications Office 1913 I Street, N.W. Washington, D.C. 20006 Area 202 833-9416 JUL 25 1974 APPLIED MICROBIOLOGY A publication of the American Society for Microbiology AM 439 July 23, 1974 Dr. J. Lederberg Department of Genetics Stanford Univ. Med. Sch. Stanford, CA 94305 Dear Dr. Lederberg: I am writing to ask for your help relative to the enclosed manuscript, "Stereoisomeric Specificity and Soil Gas Disequilibria: Implications to Martian Life Detection", which has been submitted for consideration for publication in Applied Microbiology. I would greatly appreciate your reviewing this manu- script and giving your opinion as to whether it is acceptable for publication in Applied Microbiology (review forms enclosed). If you are unable to review the manuscript just return it in the enclosed self-addressed envelope; and if possible, suggest one or two names of persons who would be knowledgeable in the area. Sipgerely yours, Applied Microbiology jdg Enclosures Before Sept. 1, 1974 my address will be: Dr. James M. Tiedje Dept. of Crop & Soil Sciences Michigan State University East Lansing, Mich. 48824 Area 517 353 9024