1. Differentiation of sympathetic and enteric neurons of the fowl embryo in grafts to the chorio-allantoic membrane

   • D. F. Newgreen
   • I. Jahnke
   • I. Lewis Gibbins

   OriginalPaper Pages: 1 - 19

2. Structure and permeability to ferritin of the choriocapillary endothelium of the rat eye

   • Richard M. Pino
   • Edward Essner

   OriginalPaper Pages: 21 - 27

3. A stereological analysis of developing egg chambers in the honeybee queen, Apis mellifera

   • Joseph Torres Jr.

   OriginalPaper Pages: 29 - 33

4. Regional specialization of the sperm membrane in the tick Amblyomma hebraeum koch (Acari: Ixodidae)

   • Ashraf El Said
   • Zdzislaw Swiderski

   OriginalPaper Pages: 35 - 45

5. Spontaneous testicular neoplasm in mice with testicular feminization

   • Kyung Won Chung

   OriginalPaper Pages: 47 - 56

6. Ultrastructural studies on paneth cell apoptosis in zinc deficient rats

   • Margaret E. Elmes
   • J. Gwyn Jones

   OriginalPaper Pages: 57 - 63

7. The distribution and structure of cells in the tracheal epithelium of the mouse

   • R. J. Pack
   • Layla H. Al-Ugaily
   • J. G. Widdicombe

   OriginalPaper Pages: 65 - 84

8. Phagocytic activity of the stellate cells in the anuran pars intermedia

   • Elizabeth K. Perryman
   • Jean de Vellis
   • Joseph T. Bagnara

   OriginalPaper Pages: 85 - 98

9. Structural changes in the pars intermedia of the cichlid teleost Sarotherodon mossambicus as a result of background adaptation and illumination

   • G. J. J. M. van Eys

   OriginalPaper Pages: 99 - 110

10. Responses of pineal photoreceptors in the brook and rainbow trout

    • Y. Omura
    • M. A. Ali

    OriginalPaper Pages: 111 - 122

11. Ultrastructural studies of severed medial giant and other CNS axons in crayfish

    • Martis L. Ballinger
    • George D. Bittner

    OriginalPaper Pages: 123 - 133

12. VIP (vasoactive intestinal polypeptide)-containing nerves of intracranial arteries in mammals

    • L. Edvinsson
    • J. Fahrenkrug
    • R. Uddman

    OriginalPaper Pages: 135 - 142

13. Fibre types in the locomotory muscles of an antarctic teleost, Notothenia rossii

    • N. Jonathan Walesby
    • Ian A. Johnston

    OriginalPaper Pages: 143 - 164

14. A peculiar fibrillar pattern in the myocardial cells of trabeculae carneae in the right ventricle of the rat, mouse, and rabbit

    • H. -J. Appell
    • C. Stang-Voss

    Short Communication Pages: 165 - 168

15. Erratum

    Erratum Pages: 169 - 169

16. Announcement

    Announcement Pages: i - i