1. The three kinds of globules that can be recognized in the living neurone of Helix aspersa are sharply distinguishable from one another by histochemical tests.
2. One kind of globule contains phospholipid; another appears to consist of trioglyceride; the third is complex chemically, containing mixed lipids with some protein and carbohydrate.
3. When osmium techniques for the ‘Golgi apparatus’ are applied to this particular cell, phospholipid is blackened.