1 900- 1 . ] 



Effects of Water on F'oliage Leaves. 



267 



III. — Decembei- ijlh. Observations made in 24 hours. 



2r. 2b. , under jar in beaker ... Rea 



ir. lb., under jar on moist slide .-. 



3b. 4r. , touching- inside moist jar 



2b. 2r. , under side of leaf. 



3r. , on upper side of leaf touching' jar 



in, on upper side of leaf not touching- jar. . . 



ir. lb., under beaker in beaker 



2r. , on moist slide under beaker 



lb., under cover g-lass under beaker 



tion, 2r. and 2 faded. 



' I bluish one blue, (dry) 



3b. 4r. 

 ' 2b. 2 bluish. 



3 bluish. 



1 bluish, 

 ir. ir. 



2 bluish, (dry). 

 blue. 



IV. 



Ja7itta7y 2jth. — Pelargfonium ; plant in the open air. 

 In all cases the litmus paper was first 

 moistened. 



3r. on upper side of leaf 



1 r. on upper side of leaf as in (Fig-. 6) 



February i6th. Plant under jar. 



2r. upper side of leaf. 



2b. upper side of leaf 



February 21st. Plant in open. 



4b. on upper side of leaf and left for 



Febrttary 2ist. Plant under jar. 



3b. on upper side of leaf 



January 2jth. Nicotiana ; plant in open. 



3r. and 3b. on upper side of leaf 



February 21 St. Plant under jar. 



3r. and 3b. on upper side of leaf 



February 21st. Chrysanthemum ; plant in open. 



3r. and 3b. on upper side of leaf 



2r. and 2b. on under side of leaf 



February 21st. Plant under jar. 



3r. on upper side of leaf 



[anuary 2^th. Solanum ; plant in open. 



3r. and 3b. on upper side of leaf 



2r. and 2b, on leaf as in (Fig-. 6) . 



Tanuary 2jth. Capsicum ; plant in open. 



3r. and 3b. on upper side of leaf . 



3r. and 3b. on under side of leaf. 



February 2 1 St. Plant under jar. 



3r. and 3b. on upper side of leaf 



3r. and 3b. on upper side of leaf ( Fig-. 6) 



3r. and 3b. on upper side of leaf (Fig. 6) 



Time. 



From these experiments one can see that there is a certain alkaUne 

 reaction of the water which had been left upon the leaf surface for a 



