101. Letter from Daniel Nathans to Kathleen J. Danna

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102. Studies of SV40 DNA: VI. Cleavage of SV40 DNA by Restriction Endonuclease from Hemophilus Parainfluenzae

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103. Letter from Kathleen J. Danna to Daniel Nathans

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104. Letter from Daniel Nathans to Ernest Winocour

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105. Letter from Daniel Nathans to Kathleen J. Danna

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106. Lab notes on Hind endonuclease

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107. Bidirectional Replication of Simian Virus 40 DNA

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108. Letter from Kathleen J. Danna to Daniel Nathans

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109. Letter from Daniel Nathans to Ernest Winocour and Maxine Singer

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110. Letter from Ernest Winocour and Maxine Singer to Daniel Nathans

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111. Letter from Maxine Singer to Daniel Nathans

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112. Letter from Daniel Nathans to Maxine Singer

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113. Letter from Maxine Singer to Daniel Nathans

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114. Daniel Nathans with faculty of the Department of Microbiology at Johns Hopkins University School of Medicine

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115. Letter from Daniel Nathans to Ernest Winocour

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116. Specific Cleavage of Simian Virus 40 DNA by Restriction Endonuclease of Hemophilus Influenzae

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117. Letter from Ernest Winocour to Daniel Nathans

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118. Lab notes of electron microscopic images of E. coli B DNA

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119. Letter from David C. Ward to Daniel Nathans

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120. Letter from Daniel Nathans to David C. Ward

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121. Letter from David C. Ward to Daniel Nathans

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122. Lab notes on transformation of BALB 3T3

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123. Letter from Daniel Nathans to David C. Ward

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124. Letter from Daniel Nathans to David C. Ward

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125. Letter from David C. Ward to Daniel Nathans

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126. Lab notes on determining fragments made by Hind on SV 40 DNA

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127. Daniel Nathans sitting in his lab

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128. Daniel Nathans in cold lab

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129. Memorandum from W. Barry Wood to David E. Rogers

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130. Memorandum from Daniel Nathans to W. Barry Wood

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131. Memorandum from Lincoln Gordon to the Faculties of Medicine and Hygiene and Public Health [on The Johns Hopkins University program in the Allied Health Sciences]

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132. Lab notes on identifying SV 40 proteins in infected cells

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133. Letter from Daniel Nathans to Ernest Winocour

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134. Letter from Ernest Winocour to Daniel Nathans

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135. SV 40 Prep

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136. Letter from Roy D. Schmickel to Daniel Nathans

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137. Letter from Daniel Nathans to Roy D. Schmickel

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138. Letter from W. Barry Wood to Daniel Nathans

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139. Letter from Daniel Nathans to W. Barry Wood

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140. DNA-RNA Hybridization and "RNA Polymerase Purification"

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141. SV 40 Prep

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142. Experiment 2: Polymer Synthesis After Infection

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143. Experiment I: Single Cycle Growth Curves

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144. Bacteriophage-Specific Proteins in E. Coli Infected with an RNA Bacteriophage

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145. Puromycin Inhibition of Protein Synthesis: Incorporation of Puromycin into Peptide Chains

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146. Biosynthesis of the Coat Protein of Coliphage f2 by E. Coli Extracts

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147. Amino Acid Transfer from Aminoacyl-Ribonucleic Acids to Protein on Ribosomes of Escherichia Coli

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148. Purification of a Supernatant Factor That Stimulates Amino Acid Transfer from Soluble Ribonucleic Acid to Protein

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149. The Formation of Myeloma Protein by a Mouse Plasma Cell Tumor

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150. Letter from Peyton Rous to Daniel Nathans

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