151. Letter from the New York Academy of Sciences to Joshua Lederberg

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152. Letter from Joshua Lederberg to Jack Edman

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153. Letter from Joshua Lederberg to Jack Edman

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154. Letter from George W. Beadle to Joshua Lederberg

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

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156. Eographs 7/45

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157. Letter from Frank Stodola to Joshua Lederberg

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158. Commonplace Notes

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159. In Med Micro Course Notes

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160. [In Med Micro Course Notes] [Transcription]

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161. Letter from Henry I. Kohn to Joshua Lederberg

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162. Letter from Joshua Lederberg to Jack Edman

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163. Letter from Francis J. Ryan to Joshua Lederberg

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164. Letter from Seymour H. Hutner to Joshua Lederberg

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165. Letter from Sterling Emerson to Joshua Lederberg

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166. Letter from George W. Beadle to Joshua Lederberg

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167. Letter from Joshua Lederberg to Edward L. Tatum

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168. Letter from Dorothy Pease to Joshua Lederberg

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169. Letter from Edward L. Tatum to Joshua Lederberg

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170. Letter from Joshua Lederberg to John Cushing

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171. Letter from George W. Beadle to Joshua Lederberg

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172. Letter from John Cushing to Joshua Lederberg

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173. Letter from Seymour H. Hutner to Joshua Lederberg

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

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175. Letter from George W. Beadle to Joshua Lederberg

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176. Letter from Joshua Lederberg to J. Oliver Lampen

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177. Letter from Joshua Lederberg to Sterling Emerson

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

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

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180. Letter from A. H. Doermann to Joshua Lederberg

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181. Letter from Joshua Lederberg to Edward L. Tatum

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182. Joshua Lederberg

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183. Letter from Edward L. Tatum to Arthur L. Tatum

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184. Letter from James Forrestal, United States Department of the Navy to Joshua Lederberg

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185. Letter from Arthur L. Tatum to Edward L. Tatum

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186. Letter from Ralph G. Meader to Edward L. Tatum

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187. Letter from Edward L. Tatum to Joshua Lederberg

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188. Letter from Francis J. Ryan to Ralph G. Meader

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

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190. Letter from Norman Winer to Harry Robinson

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191. Letter from George W. Beadle to Joshua Lederberg

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192. Letter from Edward L. Tatum to Ralph G. Meader

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193. Letter from Edward L. Tatum to Joshua Lederberg

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194. Letter from Ralph G. Meader to Joshua Lederberg

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195. Letter from Charles Seymour, Yale University to Edward L. Tatum

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

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197. Letter from Joshua Lederberg to Aura E. Severinghaus

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198. Letter from Tracy M. Sonneborn to Max Delbruck

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199. Mapping genes on the chromosome

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200. Inversion detection

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