1. Electron microscopy of the collagen fibril.- 2. Growth and development of collagen fibrils in connective tissue.- 3. Collagen distribution in tissues.- 4. Ultrastructural aspects of freeze-etched collagen fibrils.- 5. Electron microscopy of proteoglycans.- 6. Collagen-proteoglycan interaction.- 7. The ultrastructural organization of the elastin fibre.- 8. Elastogenesis in embryonic and post-natal development.- 9. Pathobiology and aging of elastic tissue.- 10. The structural basis of calcification.- 11. Electron microscopy of basal membrane.