ox THK NUMBER OF RICE SHOOTS. 



419 



A glance at this tabic shows at once how close the coincidence 

 between the numbers observed and calculated is. It must, however, 

 be remarked that tlie increase in the number of shoots with the 

 increase of seedlings contained in a batch, is subject to a certain 

 limit, beyond whicli there is no increase. This is not to be 

 wondered at, when we bear in mind the limitation of manure on 

 which the plant) chiefly depends, in opposition to the ample supply 

 of air and light. This law of constanc)- is also clear from the 

 exi)eriments made at the Tokyo Agricultural Station, tabulated 

 below : 



NniiiL- 

 of 



Rice. 



Tsuruj^i. 



Saikoku. 





Sawada. 





Number of s 



lioots 



Number of shoot? 



Number of s 



hoots 



Number of shoots 



= r. 

 u 



> 



V 



"o 



Calc'd. 



<i:f|-. 



r. 



calcd. 



dift". 



observed . 



Calc'd. 



diff. 



observed. 



calc'd. 



diff. 



I 



16.3 



16.3 



0 



20.S 



20.8 



0 



29.0 



26.5 



-2-5 



20.3 



20.5 



+ 0.2 



2 



18.5 



19.9 



+ 1.4 



24.S 



24.8 



0 



27.3 



26.5 



-0.8 



19.8 



20.5 



+ 0.7 



3 



21.7 



21.7 



0 



26.S 



26.2 



-o.C. 



24.0 



26.5 



+ 2.5 



19-3 



20.5 



+ 1.2 



4 



25.0 



23-5 



~ ' 5 



26.0 



26.2 



+ 0.2 



0 1 



" ' ■._■> 



26.5 



+ 5-2 





20.5 





5 



2S-S 



* 25.2 



-03 



25.0 



26.2 



+ 1.2 



2S.S 



26.5 



40.7 



22.3 



20.5 



-1.8 



6 



24.8 



25.2 



+ 0.4 



26.3 



26.2 



- 0.1 



27.8 



26.5 



-«-3 





20.5 





7 



26.2 



25.2 



— 1 .0 



23.S 



26.2 



+ 2.4 



20.3 



26.5 



-2.8 





20.5 





8 



22.7 



25.2 



+ 2.5 



26.0 



26.2 



-1 0.2 



25.8 



26.5 



+ 0.7 



21.9 



20.5 



-1.4 



9 



26.7 



25.2 



- '5 



27.8 



26.2 



- 1.6 



26.3 



26.5 



40.2 





20.5 





10 



25-5 



25.2 



-03 



27-5 



26.2 



~ '3 



2S.O 



26.5 



-••5 



193 



20.5 



+ 1.2 



viiiue 

 of 

 faotorC 



0.390 



0.404 







Tl'us far I liavc reasoned on the assimiption tliat the number 

 of shoots produced from a certain number of seedlings of a certain 

 kind of rice planted in a certain soil under similar conditions and 

 treatment is constant. There remains, however, one fact, which is 

 rather of high importance, viz : — 



