i6o 
Journal of Agricultural Research voi. ix, no. 6 
Table; I. —Composition of orange and lemon leaves in various states of mottling. Leaves 
collected on May n , igi6 
ORANGE LEAVES 
Part analyzed. 
Stage of 
mottling. 
Percentage distribution. 
Percentage on dry substance. 
Fe. 
Ca. 
Mg. 
p 2 o 5 . 
Fe. 
Ca. 
Mg. 
P2O5. 
Leaves minus mid- 
Trace_ 
44 
• 40 
44 
35 
0.0096 
2. 17 
O. 266 
o -437 
ribs. 
Midribs alone. 
... do. 
44 
36 
27 
. 0002 
1. 08 
. 162 
. m 6 
Leaf stems.. 
TT 
IO 
24 
29 
O * 
34 
. 0020 
7 V 
r - 35 
• 171 
• 433 
Average of leaves 
and midribs. 
. OO94 
2. 08 
. 214 
.417 
Leaves minus mid¬ 
3“4 
Tr. 
34 
40 
38 
Tr. 
*2. 18 
.30° 
• 517 
ribs. 
Midribs alone :. 
3-4 
45 
39 
35 
30 
. 0022 
2. 52 
. 262 
.411 
Leaf stems. 
3-4 
54 
27 
2 5 
3 2 
. 0027 
1. 71 
. 190 
.446 
Average of leaves 
and midribs. 
. 0011, 
2-35 
. 281 
.464 
Leaves minus mid¬ 
Last. 
62 
3 i 
39 
35 
.0058 
3. 26 
•342 
. 526 
ribs. 
Midribs alone. 
.. .do..... 
17 
41 
37 
3 i 
. 0016 
4.27 
.324 
• 458 
Leaf stems. 
21 
28 
24 
34 
. 0017 
2. 96 
.202 
• 513 
Average of leaves 
• 
and midribs. 
.0037 
3 - 77 
•333 
.492 
LEMON LEAVES 
Leaves minus mid¬ 
ribs. 
Midribs alone. 
Leaf stems. 
Average of leaves 
and midribs. 
Leaves minus mid¬ 
ribs. 
Midribs alone.*. 
Leaf stems. 
Average of leaves 
and midribs. 
Leaves minus mid¬ 
ribs. 
Midribs alone. 
Leaf stems.. 
Trace _ 
45 
41 
38 
37 
0. 0160 
i -75 
0. 216 
0.454 
.. .do.. 
45 
35 
3 i 
3 i 
. 0160 
1. 49 
• 173 
, 386 
.. .do.. 
10 
24 
3 i 
32 
. 0036 
*• °5 
• I 75 
. 400 
. 0160 
1. 62 
. 200 
. 420 
3-4 
S 2 
44 
33 
38 
. 0120 
2. 26 
. 226 
•657 
3-4 
34 
37 
38 
3 i 
. 0080 
1. 91 
•259 
•543 
3-4 
14 
19 
29 
3 i 
•0033 
0. 98 
. 196 
•535 
. 0100 
2. 09 
• 243 
. 600 
Last . 
30 
29 
40 
22 
. 0132 
3-42 
•337 
. 248 
. ..do . 
42 
28 
39 
32 
40 
20 
33 
45 
. 0180 
4 - 58 
3 - 78 
• 33<5 
. 166 
•370 
• 5 i 3 
...do . 
. 0120 
.0156 
4 . OO 
•387 
•309 
Average of leaves 
and midribs. 
