Aug. i2,1918 Effectof Oxygen Pressures on Metabolism of Sweet Potato 281 
Table IV .—Changes in composition of sweet potatoes stored in hydrogen at 4-5° C- an d 
at atmospheric pressure for different periods 
STORED FOR 3 DAYS 
Sweet potato 
No. 
On the basis of fresh material. 
On the basis of dry matter. 
Moisture. 
Starch. 
Reducing 
sugar as 
glucose. 
Cane 
sugar. 
Starch. 
Reducing 
sugar as 
glucose. 
Cane 
sugar. 
Per cent. 
Per cent. 
Per cent. 
Per cent. 
Per cent. 
Per cent. 
Per cent. 
43 a . 
73 - 38 
19. OO 
O.32 
I. 96 
7 i* 37 
I. 20 
7 - 36 
43 b . 
73 * 72 
18. 81 
•43 
2. 1$ 
71- s« 
I. 64 
8. 18 
44 a . 
75 - 7 b 
16. 90 
•43 
2 . II 
69. 72 
1.77 
8. 70 
44 b . 
75 - 15 
17- 3 ° 
•53 
2. l6 
69. 62 
2. 13 
8. 69 
45 a . 
. 73 * 1° 
18. 88 
•30 
2. 04 
71.79 
I. 14 
7.76 
45 b . 
72. 07 
20. 27 
•23 
2. l8 
7 2 - 57 
. 82 
7.81 
46a. 
73 - 5 6 
19.04 
•47 
2 . l6 
72. 01 
I. 78 
8. 17 
46b... 
73 - 74 
18.77 
• b 5 
2. 34 
71.48 
2. 48 
8. 91 
47 a . 
73 * 2 i 
I 9 * 3 i 
•35 
2. 05 
72. 08 
I* 31 
7 - b 5 
47b... 
72. 96 
19.49 
.41 
2. 10 
72.08 
I- 52 
7-77 
STORED EoR 5 DAYS 
48a. 
73 - 34 
ig. 07 
0. 35 
2. 30 
7 1 - 53 
i- 3 i 
8. 63 
48b. 
75 - 10 
16.93 
.66 
2.31 
67.99 
2.65 
9. 28 
49 a . 
7 2 -35 
20. 18 
.24 
1.97 
72. 98 
.87 
7. 12 
49b. 
73- 10 
18. 88 
•47 
2. 21 
7 °. 19 
i- 75 
8. 22 
50a. 
73*99 
18.79 
• 3 i 
i -77 
72. 24 
1.19 
6. 81 
50b.. 
73 - 65 
18.50 
• s f 
1.94 
70. 21 
2. 20 
7 - 36 
5 i a . 
71.44 
21. 28 
•38 
1. 92 
74 -Si 
i -33 
6. 72 
5 lb . 
73 * 27 
18. 70 
.89 
2.08 
69. 96 
3 - 33 
7.78 
52a. 
75 * °9 
17. 61 
•35 
2. 07 
70. 70 
1. 41 
8.31 
52b. 
74 - 30 
17.76 
• 5 b 
2. 21 
69. 11 
2. 18 
8. 60 
STORED FOR IO DAYS 
53 a .. 
74- 58 
17- 55 
O. 38 
2. 07 
69. 04 
1.49 
8. 14 
53b. 
76. l6 
15- 73 
I. 48 
1. 92 
65.98 
6. 21 
8. 05 
54a. 
74. 76 
17. 78 
.41 
2. 34 
70.44 
1. 62 
9.27 
54b. 
75- 3° 
16.47 
I * 39 
2. 29 
66. 68 
5-63 
9. 27 
55 a . 
73- 28 
18.99 
•45 . 
2. 66 1 
71-07 
1. 68 
9.96 
55b... 
74. 06 
17.66 
1. 08 
2. 94 
68.08 
4. 16 
ii- 33 
5 6a .• • 
71.07 
2i. 58 
.42 
2. 23 
74.60 
i-45 
7- 7i 
56b. 
72. 15 
19.96 
1. 03 
2. 59 
71. 67 
3- 70 
9-3° 
57 a . 
75-64 
16. 90 
.58 
2. 18 
69.38 
2. 38 
8-95 
57b. 
76. 73 
15-05 
1. 69 
1. 94 
64.68 
7. 26 
8. 34 
STORED FOR 20 DAYS 
58a . 
76.34 
l6. 52 
o- 59 
1.98 
69. 82 
2.49 
8.37 
58b. 
77. 60 
13. 22 
i- 5i 
2. 87 
59. 02 
6. 74 
12. 81 
59a . 
76-37 
16.43 
.82 
2. 02 
69-53 
3- 47 
8- 55 
59b . 
77.88 
12. 93 
1. 76 
2. 91 
58.46 
7. 96 
13- IS 
60a. 
76.57 
l6. 40 
.70 
1. 80 
70.00 
2.99 
7. 68 
60b. 
78.34 
12. 94 
1. 40 
2. 92 
59- 74 
6. 46 
13. 48 
61a.... 
76. 52 
l6. 17 
• 59 
1. 89 
68. 87 
2.51 
8. 05 
61b. 
77-05 
13- 3 2 
1-43 
3- 30 
58. 04 
6. 23 
14.38 
62a. 
75.68 
16. 78 
•63 
2. 17 
69. OO 
2 - 59 
8. 92 
62b.. . 
77- 56 
12. 79 
1. 67 
3- 29 
57.00 
7-44 
14. 66 
64612°—18 -2 
