1. Biochemical and electron microscopical evidence for the presence of oncorna viruses in spleen tissue from two patients with haematological malignancies

   • S. O. Warnaar
   • J. Te Velde
   • J. C. H. De Man

   OriginalPaper Pages: 1 - 8

2. Minimal methylation of yeast messenger RNA

   • W. H. Mager
   • J. Klootwijk
   • I. Klein

   OriginalPaper Pages: 9 - 17

3. A study of histone-histone interactions by affinity chromatography

   • A. L. Jasinskas
   • A. A. Gineitis

   OriginalPaper Pages: 19 - 25

4. Free DNA stretches in histone H1-depleted chromatin and their possible relation to chromomere structure

   • A. J. Varshavsky
   • G. P. Georgiev

   OriginalPaper Pages: 27 - 38

5. Loosening and unfolding of E. coli 50 S ribosomal subunits: Dependence on magnesium content and temperature

   • D. A. Ivanov
   • M. I. Lerman

   OriginalPaper Pages: 39 - 46

6. Processing of RNA by cytoplasmic extract

   • Mukti H. Sarma

   OriginalPaper Pages: 47 - 54

7. Stabilization of double-stranded DNA molecule by nonhistone peptidic effector from calf thymus

   • G. L. Gianfranceschi
   • D. Amici
   • L. Guglielmi

   OriginalPaper Pages: 55 - 64

8. Synthesis of delta crystallin from embryonic chick lens messenger ribonucleoprotein complex

   • Gene C. Lavers

   OriginalPaper Pages: 65 - 71

9. Crystallization of DNA fragments from water-salt solutions, containing 2-methylpentane-2,4-diol

   • V. D. Osica
   • B. Ya. Sukharevsky
   • O. F. Polyvtsev

   OriginalPaper Pages: 73 - 79

10. Sedimentation studies on membrane vesicles

    • J. Boom
    • W. S. Bont
    • M. De Vries

    OriginalPaper Pages: 81 - 86

11. Characterization of poly(a)-protein complexes isolated from free and membrane-bound polyribosomes of Ehrlich ascites tumor cells

    • Dick B. Janssen
    • Anda D. Counotte-Potman
    • Walther J. Van Venrooij

    OriginalPaper Pages: 87 - 95

12. Immunologic Phylogeny

    • W. W. De Jong

    Book Review Pages: 97 - 97