1. Origin and development of VIP and substance P containing neurons in the embryonic avian gut

   • J. Fontaine-Perus
   • M. Chanconie
   • N. M. Le Douarin

   OriginalPaper Pages: 313 - 323

2. Substance P-like immunoreactivity in the nervous system of hydra

   • C. J. P. Grimmelikhuijzen
   • A. Balfe
   • F. Sundler

   OriginalPaper Pages: 325 - 333

3. Cytochemical studies on the internal polarity of the golgi apparatus and the relationship between this organelle and GERL

   • F. Sawano
   • H. Fujita

   OriginalPaper Pages: 335 - 348

4. Quantitative measurement by microdensitometry of tyrosinase (Dopa oxidase) development in whole small ascidian embryos

   • J. R. Whittaker

   OriginalPaper Pages: 349 - 359

5. Die sauren Hydrolasen des Nebenhodenepithels von Ratten nach Kastration und Kryptorchismus

   • D. Weiss
   • R. Gossrau

   OriginalPaper Pages: 361 - 404

6. Quantitative histochemical investigations of semipermeable membrane techniques for the assay of acid phosphatase in skeletal muscle

   • P. J. Stoward
   • B. Al-Sarraj

   OriginalPaper Pages: 405 - 431

7. Kinetic and morphometric measurements of enzyme reactions in tissue sections with a new instrumental setup

   • P. Kugler

   OriginalPaper Pages: 433 - 449

8. “In situ” determinations of apparent K _m and V _max of brush border disaccharidases along the villi of normal human jejunal biopsy specimens

   • S. Gutschmidt

   OriginalPaper Pages: 451 - 462

9. Über die Verteilung einiger Hydrolasen in der Rattenniere

   • A. Irintscheff
   • M. Davidoff

   OriginalPaper Pages: 463 - 480