1. Editorial

   • C. J. F. Van Noorden

   EditorialNotes Pages: 635 - 635

2. The evolution of proteinase substrates with special reference to dipeptidylpeptidase IV

   • Robert E. Smith
   • Carmen J. Reynolds
   • Elizabeth A. Elder

   Review Pages: 637 - 647

3. Differential staining of glycosaminoglycans in the predentine and dentine of rat incisor using Cuprolinic Blue at various magnesium chloride concentrations

   • M. Goldberg
   • D. S. Septier

   Papers Pages: 648 - 654

4. AMC-anti-FITC conjugates: novel reagents for amplified immunochemical techniques. Immunofluorescent staining of human fibroblasts

   • R. A. Abuknesha
   • H. M. Al-Mazeedi
   • R. G. Price

   Papers Pages: 655 - 662

5. Prostaglandin E₂ localization in the rat ileum

   • Elsa A. Schmauder-Chock
   • Stephen P. Chock

   Papers Pages: 663 - 672

6. Calbindin D-28k-immunoreactivity in rat muscle spindles during postnatal maturation and after denervation

   • Marke Hietanen-Peltola
   • Markku Pelto-Huikko
   • Tomas Hökfelt

   Papers Pages: 673 - 678

7. A chromogranin peptide is co-stored with insulin in the human pancreatic islet B-cell granules

   • A. Lukinius
   • E. Wilander
   • K. Öberg

   Papers Pages: 679 - 684

8. Cellular heterogeneity in human transitional cell carcinoma: an anlysis of optical properties and lectin binding

   • Glen K. Ward
   • Stephen S. Stewart
   • William J. Mackillop

   Papers Pages: 685 - 694

9. News and views

   • P. J. Stoward

   News Pages: 695 - 696