1. Host specificity of DNA produced by Escherichia coli

   • Werner Arber
   • Danièle Wauters-Willems

   OriginalPaper Pages: 203 - 217

2. Bromodeoxyuridine sensitization of the ultraviolet-sensitive Escherichia coli ras - mutant to ultraviolet irradiation

   • Donald E. Lentzen
   • James R. Walker

   OriginalPaper Pages: 218 - 224

3. Genetical analysis of glossy mutants of maize

   • Francesco Salamini
   • Carlo Lorenzoni

   OriginalPaper Pages: 225 - 232

4. Infectious DNA from coliphage T1

   • G. Hotz
   • R. Mauser

   OriginalPaper Pages: 233 - 242

5. Evidence for an early regulatory function in phage P22

   • M. Bezdek
   • J. Soska

   OriginalPaper Pages: 243 - 248

6. Cell division of the Escherichia coli lon ^-mutant

   • James R. Walker
   • Jane A. Smith

   OriginalPaper Pages: 249 - 257

7. Hyper-UV-sensitive yeast I: Isolation and properties of two such mutants

   • Alistair M. Brown
   • B. J. Kilbey

   OriginalPaper Pages: 258 - 265

8. Mutations of coliphage λ affecting the expression of replicative functions O and P

   • Philippe Brachet
   • Harvey Eisen
   • Alain Rambach

   OriginalPaper Pages: 266 - 276

9. Isolation and genetic analysis of temperature-sensitive mutants of B. subtilis defective in DNA synthesis

   • Dimitri Karamata
   • Julian David Gross

   OriginalPaper Pages: 277 - 287

10. A potential method for selecting genetic deletions in Escherichia coli

    • Michael G. Burdon

    Short Communication Pages: 288 - 290