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1171. X-Ray Analysis and Protein Structure

1172. X-Ray Diffraction of Protein Crystals

1173. The Structure of Collagen

1175. On Protein Synthesis

1176. The Present Position of the Coding Problem

1177. DNA

1178. The Two Languages of Biology

1179. The Molecular Structure of Polyadenylic Acid

1180. The Theory of Mutagenesis [Editorial letter]