1. Identification of two plasmids determining resistance to tetracycline and to erythromycin in group D Streptococcus

   • P. M. Courvalin
   • C. Carlier
   • D. Blangy

   OriginalPaper 10 September 1974 Pages: 181 - 192

2. Evidence for a λ transducing phage carrying the genes for the β and β′ subunits of Escherichia coli RNA polymerase

   • Joel B. Kirschbaum
   • John Scaife

   OriginalPaper 10 September 1974 Pages: 193 - 201

3. Non-random distribution of deletion endpoints in the gal operon of E. coli

   • D. Pfeifer
   • H. J. Hirsch
   • M. Hamlaoui

   OriginalPaper 10 September 1974 Pages: 203 - 213

4. Studies on the regulation of colicin Ib synthesis

   • R. E. Isaacson
   • J. Konisky

   OriginalPaper 10 September 1974 Pages: 215 - 221

5. Studies on the regulation of colicin Ib synthesis

   • R. E. Isaacson
   • J. Konisky

   OriginalPaper 10 September 1974 Pages: 223 - 232

6. Mapping the δ-aminolaevulinic acid dehydrase and porphobilinogen deaminase loci in Bacillus subtilis

   • I. Berek
   • A. Miczák
   • G. Ivánovics

   OriginalPaper 10 September 1974 Pages: 233 - 239

7. Arginine gene duplications in recombination proficient and deficient strains of Escherichia coli K 12

   • F. Beeftinck
   • R. Cunin
   • N. Glansdorff

   OriginalPaper 10 September 1974 Pages: 241 - 253

8. Functional aspects of fluoroacetate resistance in Coprinus with special reference to acetyl-CoA synthetase deficiency

   • Lorna A. Casselton
   • P. J. Casselton

   OriginalPaper 10 September 1974 Pages: 255 - 264