42 
IValter Stiles and Ingvar Jorgensen. 
In these experiments three series of observations were made 
on the swelling of the tissue in solutions of sodium chloride of 
different strengths. In each series all the tissue used was obtained 
from the same root and at the same time sections were cut from 
this root and placed in various strengths of solution for plasmolytic 
observations. 
As regards the experiments on swelling and shrinkage, about 10 
Table I 
Swelling of Root of Red Beet in Sodium Chloride solution. 
Series 1 (Beet No. 1). 
Distilled Water. 
0-125 N. 
0-25 N 
Percentage 
Percentage 
Percentage 
Time in hrs. 
gain in 
Time in hrs. 
gain in 
Time in hrs. 
gain in 
weight. 
weight. 
weight. 
0-60 
10-8 
0-61 
9-8 
0-69 
9-9 
3-82 
17-9 
3-94 
14-0 
4-11 
131 
572 
18-9 
5-78 
14-4 
5-87 
12 6 
22-84 
20-9 
22-78 
14-6 
22-81 
12-8 
30-42 
22-3 
30 33 
15-2 
30-28 
13 1 
47 02 
23-3 
46-95 
151 
46-85 
13-0 
70-85 
250 
70-70 
15-3 
70-6 
13-0 
95-00 
24-2 
95-0 
15-2 
94-5 
13-0 
1430 
25-4 
143-0 
14-5 
142-5 
12-1 
167-0 
24-5 
1670 
14-2 . 
166-5 
12-3 
191-0 
24-3 
191-0 
12-0 
190-5 
12-5 
235 0 
23-7 
235 0 
11-7 
234-5 
12-3 
259-0 
22-9 
259-0 
9-5 
258-5 
12-7 
283 0 
21-5 
283-0 
6-3 
282-5 
12-8 
3310 
19-6 
3310 
4.9 
330-5 
61 
Tablb II. 
Swelling and Shrinkage of Root of Red Beet in Sodium Chloride 
solution. Series 2 (Beet No 2). 
0-25 N 
0-33 N 
0-40 N 
0-45 N 
Percent- 
Percent- 
Time in 
Percent- 
Percent- 
Time in 
Time in 
Time in 
hours 
age gain 
hours 
gain in 
hours 
age gain 
hours 
age gam 
in weight 
weight 
in weight 
in weight 
052 
61 
0-57 
3-9 
0 62 
—0-6 
0-69 
—4-9 
2 27 
10-4 
2-28 
7-9 
2‘32 
—0-1 
2-21 
—6-2 
5-42 
11-1 
5-41 
8-1 
5 47 
—0-2 
5-53 
—6*4 
22-52 
4-1*9 
22-52 
-5-2 
46 8 
4-3-5 
46'82 
—5-2 
950 
4 -1-6 
95*0 
—5-1 
118-8 
—0-9 
118 82 
—61 
134-8 
—4-3 
134-82 
—7-2 
159-7 
—91 
182-8 
—10-4 
