374 



T. FURUTA. 



CaO : MgO 



No. 1 3 : i 



No. II 2 : i 



No. Ill i : i (Original soil.) 



No. IV i : 2 



On April 3rd., sixteen porcelain pots received each 8 kilo, 

 of our analysed air dry soil mixed with 16 gr. of commercial 

 superphosphate. 10 gr. of potassium carbonate, and 16 gr. of 

 sodium nitrate. 



In order to reach the above mentioned ratios of assimilable 

 lime and magnesia : 



CaO : MgO 



Pot No. I. (3:1) received 42.G gr. quick lime. 

 Pot No. II. (2 : 1) received 32.5 gr. quick lime. 

 Pot No. III. (1 : i) no further addition, 



Pot No. IV. : 1) received 89.5 gr. magnesium carbonate. 

 The pots were placed in the green house, and served now 

 for cultures of cabbage, buckwheat and oats. 



Experiment with Cabbage. 



On April 20th., four pots received ten cabbage seeds each, 

 the germination proceeded with different degrees of rapidity, as 

 will be seen in the following table : — 



Number of young plants appearing. 



Cabbage. 



CaO:MgO 

 >>"o. L (3 : 1) 



CaO:MgO 

 No. II. (2:1) 



CaO:MgO 

 No. HI. (i : 1) 



CaO: MgO 

 No. IV. (1 : 2) 



April 24. 





r. 



2. 



°- 



2 c 





2 



: 



5 - 



1. 



„ 26. 







6. 



1. 



»> 29. 



2. 



4- 



6. 



1. 



Since some of the seeds failed to germinate, a number of 

 young plants taken from the field served on May 3rd. to increase 

 in each pot the number of shoots to seven. On May 30th., a 



