18001. Letter from Edward L. Tatum to George W. Beadle

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18002. Letter from Joshua Lederberg to P. R. Edwards

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18003. Letter from Raymond R. Roepke, American Cyanamid Company to Joshua Lederberg

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18004. Projects

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18005. Letter from Aura E. Severinghaus to Joshua Lederberg

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18006. Letter from George W. Beadle to Edward L. Tatum

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18007. Letter from Morris L. Rakieten to Joshua Lederberg

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18008. Letter from Joshua Lederberg to Aura E. Severinghaus

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18009. Letter from Joshua Lederberg to Morris L. Rakieten

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18010. Letter from Joshua Lederberg to C. C. Lindegren

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18011. Detection of Biochemical Mutants of Microorganisms

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18012. Letter from Tracy M. Sonneborn to Joshua Lederberg

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18013. Letter from Tracy M. Sonneborn to Joshua Lederberg

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18014. Letter from Ralph Mellon to Joshua Lederberg

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18015. Letter from Joshua Lederberg to Tracy M. Sonneborn

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18016. Letter from Joshua Lederberg to Tracy M. Sonneborn

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18017. Letter from Joshua Lederberg to P. R. Edwards

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18018. Letter from Salvador E. Luria to Joshua Lederberg

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18019. Letter from Joshua Lederberg to Ralph G. Meader

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18020. Letter from C. C. Lindegren to Joshua Lederberg

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18021. Letter from P. R. Edwards to Joshua Lederberg

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18022. Letter from Ralph G. Meader to Joshua Lederberg

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18023. Letter from Ralph G. Meader to Edmund W. Sinnott

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18024. Letter from Max Delbruck to John Burton Sanderson Haldane

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18025. Letter from Samuel Graff to Joshua Lederberg

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18026. Letter from Max Delbruck to John Burton Sanderson Haldane

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18027. Letter from Raymond R. Roepke, American Cyanamid Company to Joshua Lederberg

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18028. Letter from Henry Platt to Joshua Lederberg

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18029. Letter from Raymond L. Latarjet to Joshua Lederberg

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18030. Letter from Rene J. Dubos to Joshua Lederberg

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18031. Letter from Joshua Lederberg to Henry Platt

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18032. Letter from Joshua Lederberg to Rene J. Dubos

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18033. Letter from Joshua Lederberg to J. Oliver Lampen

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18034. Letter from J. Oliver Lampen, American Cyanamid Company to Joshua Lederberg

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18035. Letter from Tracy M. Sonneborn to M. Demerec

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18036. Letter from Joshua Lederberg to P. R. Edwards

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18037. Letter from Joshua Lederberg to Salvador E. Luria

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18038. Letter from Joshua Lederberg to Francis J. Ryan

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18039. Letter from Salvador E. Luria to Joshua Lederberg

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18040. Letter from Raymond R. Roepke, American Cyanamid Company to Joshua Lederberg

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18041. Letter from Francis J. Ryan to Joshua Lederberg

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18042. Letter from George W. Beadle to Edward L. Tatum

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18043. Letter from Joshua Lederberg to J. Oliver Lampen

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18044. Letter from Joshua Lederberg to Salvador E. Luria

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18045. Letter from Joshua Lederberg to Samuel Graff

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18046. Letter from Joshua Lederberg to Salvador E. Luria

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18047. Letter from Tracy M. Sonneborn to Salvador E. Luria

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18048. Letter from Joshua Lederberg to Gerry Lindegren

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18049. Letter from Joshua Lederberg to Raymond R. Roepke, American Cyanamid Company

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18050. Status: Sex in Bacteria

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18051. Letter from Ralph G. Meader to Joshua Lederberg

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18052. Letter from M. Demerec to Joshua Lederberg

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18053. Letter from Tracy M. Sonneborn to Joshua Lederberg

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18054. Letter from Salvador E. Luria to Joshua Lederberg

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18055. Letter from Joshua Lederberg to Francis J. Ryan

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18056. Letter from Edward L. Tatum to George W. Beadle

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18057. Many Scientists in Cold Spring Harbor Summer Symposium

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18058. Letter from Salvador E. Luria to Joshua Lederberg

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18059. Letter from Joshua Lederberg to Kimball Atwood

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18060. Letter from Joshua Lederberg to Salvador E. Luria

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18061. Letter from David Rittenberg to Joshua Lederberg

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18062. Letter from Joshua Lederberg to Esther Lederberg

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18063. Letter from Joshua Lederberg to Ralph G. Meader

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18064. Studies in Bacterial Genetics: An Interim Report to the Director, Jane Coffin Childs Fund

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18065. Letter from Joshua Lederberg to Harriett Ephrussi-Taylor

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18066. Letter from Joshua Lederberg to Aura E. Severinghaus

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18067. Letter from Margaret Holden to Joshua Lederberg

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18068. Letter from Joshua Lederberg to Margaret Holden

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18069. Letter from Sol Spiegelman to Joshua Lederberg

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18070. Letter from Lucena Barth to Joshua Lederberg

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18071. Letter from Joshua Lederberg to Francis J. Ryan

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18072. Letter from Joshua Lederberg to Sol Spiegelman

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18073. Letter from Joshua Lederberg to Samuel Graff

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18074. Letter from Sol Spiegelman to Joshua Lederberg

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18075. Untitled notes on distinctiveness of genotypes

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18076. Letter from Edward L. Tatum to George W. Beadle

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18077. Letter from Joshua Lederberg to Sol Spiegelman

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18078. [Laboratory notebook entry], 2 June 1946

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18079. Reverse-Mutation and Adaptation in Leucineless Neurospora

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18080. Letter from Tracy M. Sonneborn to Salvador E. Luria

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18081. Letter from Joshua Lederberg to David Rittenberg

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18082. Letter from Joseph J. Peters to Joshua Lederberg

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18083. Letter from Salvador E. Luria to Tracy M. Sonneborn

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18084. Letter from Francis J. Ryan to Joshua Lederberg

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18085. Letter from Norman Winer to Joshua Lederberg

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18086. Letter from Joshua Lederberg to Francis J. Ryan

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18087. Letter from T. C. Sheng to Joshua Lederberg

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18088. Letter from Lynferd J. Wickerham to Joshua Lederberg

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18089. Letter from Joshua Lederberg to T. C. Sheng

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18090. Letter from Joshua Lederberg to Evelyn Witkin

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18091. Letter from Andre Lwoff to Joshua Lederberg

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18092. Studies in Bacterial Genetics

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18093. Letter from Hans Ris to Joshua Lederberg

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18094. Letter from Bernard O. Dodge to Edward L. Tatum

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18095. Letter from Barbara McClintock to Joshua Lederberg

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18096. Letter from Samuel Graff to Joshua Lederberg

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18097. Letter from T. C. Sheng to Joshua Lederberg

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18098. Letter from Joshua Lederberg to Lynferd J. Wickerham

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18099. Letter from Lucille Georg to Joshua Lederberg

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18100. Letter from Lynferd J. Wickerham to Joshua Lederberg

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