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an ordinary room lose their germinating power toward the June of the 

 following year and in September not a single seed germinated. In a 

 cellar, excepting the fire-dried seeds, all the other seeds could be used for 

 sowing in April of 1907, the power, however, has totally gone on September. 



II. The Second Experiment 



With the view of ascertaining the conditions which influence the 

 germinating power of seeds the second experiment extended from 1909- 

 1912. 



The seeds used in the trials were those of Sugi, Hinoki and Aka- 

 matsu which were brought in the market as seeds of the year 1909 and 

 they were immediately preserved as follows without undergoing any 

 drying or without any special selection. 



Glass bottles 13.2 cm high, with a diameter of 8 cm at the mouth 

 were used. 



The temperature and moisture of the room where the seeds were 

 kept are shown in the table. The moisture of the air is taken from the 

 record furnished by the Central Meteorological Observatory, Tokyo. The 

 temperature in the cellar which undergoes a regular variation during the 

 course of a year showed its minimum of 11°-12°C. in January and February, 

 with its maximum of 16°-17°C. in September-October, thence gradually 

 falling. No variation is observable within 24 hours (only a slight 

 fluctuation of less than 0.5°C. being sometimes noticeable) and the moisture 

 in the cellar was always at the point of saturation. 



