一、大火後燒跡ニ於テ、一時ニ非常ナル勢ヲ以テ出現シタル赤橙又ハ黄橙色ヲ呈セル絲状菌ハ、モニリア、アウレア (Monilia aurea (LINK.) GMEL.)、又ハモニリア、アウレオ、フルヴ (M. aureo-fulva C. et E.) ニ近キ種ナリ。 二、本菌ハ攝氏百度ノ蒸氣ニ對シテハ弱ク、直ニ死滅スルモ、乾熟ニ對シテハヨク耐へ、攝氏百三十度ニテ死滅ス。 三、本菌バカロチン類ニ屬スル色素ヲ含有ス。
1. The longevity of Nelumbo seeds, when kept in soil, is estimated to be 120 years or more. 2. In spite of the presence of a large number of small pores in the seed-coat, the seeds did not absorb water and germinate even after eight months. 3. The seeds, when filed before sowing, germinated without exceptionin a few days in spring time.
1. The nuclear division of diatoms occurs not only in the night, as it is generally assumed, but also in the day time, if they are subjected to a certain condition. 2. The movementof the nucleus toward the girdle region is one of ther emarkable phenomena in the mitosis. 3. The origin of the central spindle is not studied. It has been left for the further investigations. 4. Well-developing chromosomes are slender in form as those of Surirella calcarata studied by LAUTERBORN. The number of chromosomes have not been precisely counted; it lies perhaps between 12 and 20. 5. The true centrosome appears neither in the vegetative condition nor in the mitosis but centrosome-like bodies have been found in the certain figures of the mitosis as a temporary occurrence. 6. The cell division commences with the formation of a cell plate which is divided into two plates first in its central part, appearing as a fusiform fissure. The division in the marginal region of the cell plate follows it giving rise to an appearance of a constriction of the cell.
1. When cells are exposed to the ultraviolet rays, the stricture of chromosomes become more distinct than otherwise; and when the rays are very intense, the chromosome is broken up at the stricture. 2. Karyoplasmic masses are scattered irregularly in the cell exposed to the rays. 3. Irregular distribution of chromosomes are found, and sometimes tripolar divisions of somatic nuclei occur. 4. In the formation of the pollen, it is not all of the tetrad cells, which develope into definite grains, but some of them degenerate. 5. In the present experiment with ultraviolet rays, OVERTON'S view of the so-called “Prochromosomes” was not confirmed, just as it failed to be sustained in the case of non-treated materials; the number of chromatin grains having no connection with the number of the chromosomes of the nucleus.