vol. 37 (1980-03-15 issued)
| Freezing Avoidance of Primordial Shoots of Very Hardy Conifer Buds | |
| SAKAI, Akira | 1-9 |
| Freezing Resistance of Herbaceous Plants | |
| NOSHIRO, Masao;SAKAI, Akira | 11-18 |
| Growth Rate of Spruces Related to the Thickness of Permafrost Active Layer near Inuvik, Northwestern Canada | |
| SAKAI, Akira;YOSHIDA, Shizuo;SAITO, Mitsuru;Zoltai, S.C. | 19-32 |
| Biomass and Productivity of Betula papyrifera near Its Climatic limit in Northwestern Canada | |
| SAKAI, Akira;YOSHIDA, Shizuo;SAITO, Mitsuru | 33-38 |
| A Preliminary Note on winter Drosophilid Flies in Southern Japan, with Special Reference to Reproductive Conditions | |
| TODA, Masanori J. | 39-45 |
| A Wild Bee Survey in Kiritappu Highmoor, Eastern Hokkaido | |
| UEHARA, Yoshiharu;AKAHIRA, Yukio;SAKAGAMI, Yoshiharu | 47-57 |
| Altitudinal Change of Habitat Preference in Ants of Swiss Jura | |
| HIGASHI, Seigo | 59-66 |
| Disappearance of Diapause in Hybrid Pupae between Two Swallowtail Species, Papilio xuthus and P. machaon | |
| SHIMADA, Kimio | 67-71 |
| Partial Appearance of Non-hibernating Adults and Egg Complements in the Poplar Sawfly Trichiocampus populi (Hymenoptera, Tenthredinidae) | |
| SAKAGAMI, Shoichi F.;TANNO, Kouzou | 73-80 |
| The Bumblebees in Southern Hokkaido and Northernmost Honshu, with Notes on Blakiston Zoogeographical Line | |
| ITO, Masao;MUNAKATA, Meiyo | 81-105 |
| Freezing Resistance of Temperate and Sub-arctic Conifers Native to the Southern Hemisphere | |
| SAKAI, Akira;Paton, D. M.;Wardle, P. | 107-111 |
| Effect of Temperature on Embryonic and Post Embryonic Development of Salamander, Hynobius retardatus | |
| MORIYA, Tsuneo | 113-115 |