22 



DR. F. DARWIN ON THE 



Table I. 



Distinguishing Number of plants, 



label on 



plate. Starved. Fed 



1 16 14 



II 12 ia 



III 19 14 



IV 17 13 



V. ! 13 15 



VI 14 17 



Total 91 86 



The 



from that on the starved side materially ; for on Sept. 3 the con- 

 tents of three of plates (I., III., and VI.) were floated in water 

 and the plants carefully picked out and counted, and the starved 

 plants were 82, the fed 84 in number, including a number of 

 minute dwarf-like oifsets. 



The plants were arranged with the partition-line of each point- 

 ing to the light, so that neither side received more light than the 

 other; and the arrangement of the plates was systematically 

 varied, so as to prevent any one profiting from light or air more 

 than its fellows. The plates were placed under the net on 



■ 



June 12th, and the leaves fed on that and the following day. 

 Owing to my absence, they were not again fed till July 5th, after 

 which date the following Table gives the days of feeding. 



Table II. 



Days on which 



plates I., II., and 



III. were fed. 



July 9 



?> 



jt 



9) 



5J 



Aug. 



>? 



?' 



14 



22 

 25 

 31 

 4 

 17 

 25 



Days on which 



plates IV., V., and 



VI. were fed. 



July 13 



» 



» 



» 



18 

 21 

 27 

 Aug. 3 



n 25 









