1. Transmission of action potentials inBiophytum

   • Takao Sibaoka

   OriginalPaper Pages: 51 - 61

2. Autoradiographic studies on the incorporation of³H-amino acids into chromosomes during the mitotic cell cycle ofHaplopappus gracilis

   • Yoshihiko Yonezawa
   • Ryuso Tanaka

   OriginalPaper Pages: 63 - 74

3. Studies on generaMallomonas andSynura, and other plankton in freshwater with the electron microscope

   • Eiji Takahashi

   OriginalPaper Pages: 75 - 88

4. Biosystematic studies onMaianthemum (Liliaceae-polygonatae)

   • Hiromichi Koyama
   • Shoichi Kawano

   OriginalPaper Pages: 89 - 101

5. A taxonomic study of the genusCalamagrostis on Mount Yakeishidake

   • Tuguo Tateoka

   OriginalPaper Pages: 103 - 120

6. The metabolism ofStreptomyces griseus

   • Yukio Inoue

   OriginalPaper Pages: 121 - 132

7. Studies on the behavior of meiotic protoplasts

   • Michio Ito

   OriginalPaper Pages: 133 - 141

8. Publication dates of and index to taxa in reports by R. Kanehira on plants collected during the Kanehira-Hatusima 1940 collection in New Guinea

   • Pieter van Royen

   OriginalPaper Pages: 143 - 154