140 The Botanical Gazette. [April 
stant supply of water both day and night to wet surfaces, it 
was done by connecting them by means of short ribbons of 
filter paper with beakers kept filled with water. All cases of 
comparative wetting, etc., were judged by other and dis- 
interested persons. In all weighings allowance was made for 
withered leaves, etc. Some of the experiments were con- 
ducted in large Wardian cases, others in bell jars. Whenit 
was needful to keep the airin the latter saturated, it was done 
by use of wet sponges as well as by shallow dishes of water. 
Those experiments which are described below are the best 
from a very large number. There were a few cases if 
which contrary results were obtained, but in all such, some 
error could have (or was known to have) come in 
For convenience, the experiments were divided into four 
seca eae 
. Absorption from wet surfaces. 
2. Absorption of water supplied in drops, as rain. 
3. Absorption from a quantity of liquid water. 
4. Absorption of water-vapor. 
. Do uninjured aig through their green parts absorb 
ces from wet surfaces 
Exp. b. Stro eaved, 2" high, 
Seiehite tt ahos sg Sie one en epee _broad-eav stalk abet 
half its length was ition aN filter kept tantly wet. 
paper kept constantly : 
air of room. Second day, traces of drooping in unwrapped stem, a ret 
: wilte th, ernibl Pete 
wilted; tenth day, all leaves dry and withered sm stems drooping; 2 disiate? 
ested person could not tell which was most wi 
Exp. c. Three strong plants of same species of ks all 20-24" high, Me othet 
bree 
ad 
- 
: plant. Fo evel 
stalks of - é : ie 
s of three ny ages somghaniy closely wrapped throughout, er? of roo 
Exp. d. a 
n 
lants of Her t ts, previously treated 
i Se oe ct oe a crepitans in separate pots, rt ae r unwrap” 
ompletely with filter ae ke Othe 
ye A b 
wilting, but no marked differe ence, if any the 
apped s the 
mo i both continued to wilt until dead, but euiee more te as ae 
ae ¢. Three plants of Coleus sp?; common little-colored variety: ' oy 4 
long internodes wrapped in filter paper kept wet; 2, unwr 
/ 
