Induced Vaviations in NaCl Content of Non- 257 
Halophytes. 
used throughout all the experiments, and the leaves were kept in 
darkness between the successive weighings. 
TABLE I. 
Amount of NaCl contained in untreated leaves. 
Plant. 
Weight of leaves 
taken after 
drying for 1£ 
hours at 100°C. 
NaCl in Ash. 
. % NaCl in Ash 
% dry weight of 
leaves. 
(1) Camellia japonica 
... 0-7346 ... 
... 0-001756 ... 
... 0-2 ... 
(2) 
... 0-9831 ... 
... 0-002960 ... 
... 0-2 ... 
(3) 
... 31990 ... 
... 0 007020 ... 
... 0-2 ... 
(1) Ilex A quifolium 
.... 2-1643 ... 
... 0-007020 ... 
... 0-3 ... 
... 0-9161 ... 
... 0-005260 ... 
... 0-5 ... 
(3) 
... 0-8477 ... 
... 0 002960 ... 
... 0-3 ... 
(1) Syringa vulgaris 
... 0-3692 ... 
... 0-0029 
... 0-8 ... 
(2) 
... 0-2432 ... 
... 0 0018 ... 
... 0-7 ... 
(3) ,, ,, 
... 0-2482 ... 
... 0 0024 ... 
... 0-9 ... 
(1) Cavendishia acuminata 
... 0-6683 ... 
... 0 00176 ... 
... 0-2 ... 
(2) 
... 0-5088 ... 
... 0 00117 ... 
... 0-2 ... 
(3) 
... 0-6428 ... 
... 0 00234 ... 
... 0-3 ... 
(1) Arum maculatum 
... 0-6362 ... 
... 0 00585 ... 
... 0-9 ... 
(2). 
... 0-8673 ... 
... 00117 
... 1-3 ... 
(3). 
... 1-3738 ... 
... 0 0106 ... 
... 08 ... 
In the case of immersed leaves the following methods were 
used. The leaves were cut fresh from the plant and the cut end of 
the petiole sealed by dipping in melted paraffin wax. The leaves 
were cleaned with filter paper, dipped in distilled water, dried and 
weighed. They were then put into glass-stoppered bottles filled 
with sea-water or salt solution of known salinity. They were taken 
out, dried thoroughly with filter paper every three hours and 
weighed, and were then immediately replaced in the solution until 
the next weighing. At the end of the experiment they were washed 
thoroughly in distilled water until the wash water gave no opal¬ 
escence with silver nitrate, and the sodium chloride determined. 
Three sets of leaves of each plant were taken, two sets being 
placed in salt solution and one set in sea-water. 
Tables II and III give the results of these experiments. Only 
perfect leaves with uninjured epidermis were used. 
