1. Morphological characteristics of the spermatogonial stem cells in man

   • Cornelia Schulze

   OriginalPaper Pages: 191 - 199

2. Ultrastructure of the corpus cardiacum and corpus allatum of the house cricket Acheta domesticus

   • James T. Bradley
   • John S. Edwards

   OriginalPaper Pages: 201 - 208

3. Long term increase of mucosal mast cells in the rat induced by administration of Compound 48/80

   • Lennart Enerbäck
   • Gun-Britt Löwhagen

   OriginalPaper Pages: 209 - 215

4. Synaptology of the central nervous system of the freshwater snail Lymnaea stagnalis (L.), with particular reference to neurosecretion

   • E. W. Roubos
   • Carry M. Moorer-van Delft

   OriginalPaper Pages: 217 - 235

5. Ultrastructure and function of the labial nephridia and the rectum of Orchesella cincta (L.) (Collembola)

   • H. A. Verhoef
   • Cecilia Bosman
   • H. H. Boer

   OriginalPaper Pages: 237 - 246

6. Morphogenesis of tight junctions in the peritoneal mesothelium of the mouse embryo

   • Fumie Suzuki
   • Toshio Nagano

   OriginalPaper Pages: 247 - 260

7. Fluorescence histochemical study on regional differences in the sympathetic nerve supply of the choroid plexus from various laboratory animals

   • Maria Lindvall

   OriginalPaper Pages: 261 - 267

8. The air-blood barrier in the human lung

   • H. Bartels

   OriginalPaper Pages: 269 - 285

9. Ultrastructure and ATPase activity of the rectal gland of the chondrichthyean fish Hydrolagus colliei (Holocephali)

   • Michael D. Lagios
   • Sheila Stasko-Concannon

   OriginalPaper Pages: 287 - 294

10. A study of gonadal organogenesis, and the factors influencing regeneration following surgical castration in Deroceras reticulatum (Pulmonata:Limacidae)

    • N. A. S. Hogg
    • J. Wijdenes

    OriginalPaper Pages: 295 - 307

11. Observations of the pineal region of non-eutherian mammals

    • G. C. T. Kenny
    • F. T. Scheelings

    OriginalPaper Pages: 309 - 324

12. Quantitaton of gastrin and somatostatin cell populations in the antral mucosa of the rat comparative distribution and evolution through different life stages

    • T. Lehy
    • L. Grès
    • E. Ferreira de Castro

    OriginalPaper Pages: 325 - 333

13. A comparison of receptive and non-receptive plasma membrane areas of photoreceptor cells in the leech, Hirudo medicinalis

    • Bernd Walz

    OriginalPaper Pages: 335 - 348

14. Differential effects of trypsin on the epidermis of Rana catesbeiana

    • Louis C. Morejohn
    • James N. Pratley

    OriginalPaper Pages: 349 - 362

15. The postnatal development of the submandibular gland of the mouse

    • R. Srinivasan
    • W. W. L. Chang

    OriginalPaper Pages: 363 - 371

16. A new type of synapse in the ventral cochlear nucleus

    • P. Köpf-Maier

    OriginalPaper Pages: 373 - 380