1. The Robert Feulgen prize

   Editorial Announcement Pages: 403 - 403

2. Ovarian histochemistry of the fishesCyprinus carpio, Mugil capito andTilapia aurea (Teleostei)

   • Nelly Livni

   Papers Pages: 405 - 414

3. Immunofluorescent localization of trypsin-like esteropeptidases in the mouse submandibular gland

   • T. O. Ekfors
   • V. K. Hopsu-Havu

   Papers Pages: 415 - 420

4. Observations on the glycosaminoglycans of aging bronchial cartilage studied with Alcian Blue

   • R. M. Mason

   Papers Pages: 421 - 434

5. Adenosine triphosphatases and related enzymes of the juxtaglomerular and arteriole smooth muscle cells in rat kidney

   • G. Barbolini
   • Alicja B. Kolendo
   • A. G. E. Pearse

   Papers Pages: 435 - 443

6. Histochemical demonstration of sulphate groups by means of diaminobenzidine

   • G. Bussolati

   Papers Pages: 445 - 449

7. Histochemical evidence of chemical sympathectomy by guanethidine in newborn rats

   • Olavi Eränkö
   • Liisa Eränkö

   Papers Pages: 451 - 456

8. The histochemical demonstration of three types of intrafusal fibre in rat muscle spindles

   • N. T. James

   Papers Pages: 457 - 462

9. Mercurous nitrate as a histochemical reagent for calcium phosphate in bone and pathological calcification and for calcium oxalate

   • Philip Pizzolato

   Papers Pages: 463 - 469

10. A study of the methods available for the cytochemical localization of histamine by fluorescence induced witho-phthalaldehyde or acetaldehyde

    • S. A. M. Cross
    • S. W. B. Ewen
    • F. W. D. Rost

    Papers Pages: 471 - 476

11. Histochemistry of non-specific phosphatases: The use ofp-nitrophenyl phosphate andβ-glycerophosphate as substrates

    • John Butterworth

    Papers Pages: 477 - 487