1. Editorial

   • Peter J. Stoward

   EditorialNotes Pages: 1 - 1

2. Uptake of [³⁵S] sulphate in human colonic mucosa associated with carcinoma: an autoradiographic analysis at the ultrastructural level

   • P. A. Dawson
   • M. I. Filipe

   Papers Pages: 3 - 13

3. Apoprotein B localization in control and streptozotocin-diabetic rat skeletal muscles

   • W. T. Stauber
   • S. H. Ong

   Papers Pages: 15 - 20

4. DNA, RNA, protein and heterochromatin changes during embryo development and germination of soybean (Glycine max L.)

   • Sukhraj S. Dhillon
   • Jerome P. Miksche

   Papers Pages: 21 - 37

5. Ultrastructural localization of actin in muscle, epithelial and secretory cells by applying the protein A-gold immunocytochemical technique

   • Moïse Bendayan

   Papers Pages: 39 - 58

6. Concanavalin A receptors and capping in control and activated macrophages

   • K. Donaldson
   • J. M. G. Davis
   • K. James

   Papers Pages: 59 - 69

7. Acid phosphatase activity in yolk droplets of chick notochordal cells

   • Tetsuro Kayahara

   Papers Pages: 71 - 77

8. Routine mounting of hydrated enzyme-extracted sections for electron microscopy

   • Elizabeth Shiffield
   • Susan Laird
   • P. R. Bell

   Short Communications Pages: 79 - 82

9. Immunofluorescence localization of contractile proteins in the rat lung following bleomycin injury

   • Kathleen Doane
   • Richard A. McReynolds
   • Frank J. Wilson

   Short Communications Pages: 82 - 88

10. News and views

    • F. P. Altman

    News Pages: 89 - 90

11. Book review

    • Hans Galjaard

    BookReview Pages: 91 - 94