NUTRITION OF DEOSEEA EOTUNDTFOLIA. 



29 



Table IX. 



A. 



B. 



Weight of 2640 starved and 1578 

 fed seeds. 



Proportion between two columns 

 of A ; starved being taken = 100. 



Starved. 



mgrs. 



255 



Fed. 



mgrs. 



240 



Starved. Fed, 



100 : 15736 

 100 : 2415 



* 



100 : 379-7 



* 



Average weight of each seed. 



mgr. 

 •00966 



mgr. 

 •0152 



Total calculated number of seeds 

 yielded by the plants in all the 

 plates. 



68,040 



164,296 



Total calculated weight of seeds 

 yielded by the plants in all the 

 plates. 



grm. 

 •6572 



grms. 



2 4956 



advantage. It is true that the average height of the stems is 

 almost exactly equal (starved : fed : : 100 : 99'9). But if the 

 average height of stem per plant had been calculated, it would 

 have been about 100 : 1599, which is the proportion between the 

 sum of the heights of all the starved and all the fed plants. 

 Another interesting fact is that, although the number and height 

 of the stems and the number of the seeds of the fed plants con- 

 siderably exceed the corresponding numbers in the "starved" 

 column, yet the weights of the stems and the weights of the seeds 

 on the fed side exceed the corresponding weights in the starved 

 columns in a still higher ratio. This is important, because in- 

 creased weight is a better proof than an increase in numbers or 

 size of increased assimilation. 



If we compare Table III. with Table VII., we find that on 

 Aug. 7 the starved flower-stems numbered 116, the fed ones 173; 

 on Sept. 1st the starved stems were 117, while the fed ones num- 

 bered 193. 



