FLORIDA ;STATE HORTICULTURAL SOCIETY. 
107 
Table I. 
MINERAL CONSTITUENTS, CALCULATED TO COMMERCIAL MATERIALS, IN DRAINAGE 
WATERS FROM SOIL TANKS. POUNDS PER ACRE. 
TANK NO. I. 
1910. 
Nitrate of 
Soda. 
Acid 
Phosphate. 
Sulphate of 
Potash. 
Carbonate of 
Lime. 
Carbonate of 
Magnesia. 
August 1. 
98.6 * 
.26 
6.4 
38.1 
3 D1 
August 6. 
130.1 
.30 
2.1 
42.9 
36.8 
August 15. 
105.0 
•30 
1-5 
33-8 
30.8 
August 24. 
1130 
.40 
1-9 
35-1 
30.6 
September 8. 
92.1 
•35 
1.8 
30.4 
25-9 
October 10. 
43-3 
•30 
1.0 
11.3 
10.1 
October 19. 
49-6 
.41 
1-3 
14.6 
14.6 
Total. 
6317 
2.32 
16.0 
206.2 
179.9 
TANK NO. 2 . 
August 1. 
82.3 
.42 
6.9 
37-6 
26.3 
August 6. 
112.9 
•39 
2.3 
43-2 
23-5 
August 15. 
114.8 
.33 
1.6 
43-8 
24.9 
August 24. 
145-5 
.26 
2.1 
52.8 
27.2 
September 8. 
71.9 
.27 
1.2 
28.0 
15-5 
October 10. 
26.6 
.20 
•9 
10.9 
6.4 
October 19. 
46.9 
.28 
1.0 
17.1 
10.0 
Total. 
600.9 
2.15 
16.0 
2334 
133.8 
TANK NO. 3. 
August 1. 
119.6 
•57 
6.8 
38.9 
34-9 
August 6. 
174.6 
42 
2.7 
48.6 
43-7 
August 15. 
I 3 I -9 
.21 
2.0 
37-6 
37-5 
August 24. 
102.7 
.27 
1.8 
30.4 
28.7 
September 8. 
60.7 
.26 
1-5 
16.6 
16.0 
October 10. 
299 
. .18 
1.1 
9.4 
9-4 
October 19. 
48.3 
•31 
1.4 
12.8 
12.5 
Total. 
667.7 
2.22 
i 7-3 
194.3 
182.7 
TANK NO. 4. 
August 1. 
187.6 
.50 
11.0 
43-8 
5 I.I 
August 6 ; . 
205.9 
•37 
5-5 
41.6 
54-9 
August 15. 
205.7 
.20 
5-2 
44-9 
56.8 
August 24. 
149.9 
•34 
4.1 
30.9 
39-1 
September 8. 
53-8 
•55 
3-5 
16.7 
20.8 
October 10. 
34-3 
•39 
2.8 
10.8 
138 
October 19. 
70.4 
.68 
4.4 
18.8 
25.2 
Total. 
907.6 
303 
36.5 
207.5 
261.7 
Average of the four 
tanks . 
702.0 
2-43 
21.4 
210.3 
1895 
