THE HEVEA EUBBEK TEEE IN THE AMAZON VALLEY 
17 
Table 1. — Data from 239 Hevea trees on an estrada on the Rio Ouro Preto, Motto 
Grosso, Brazil — Continued 
Circum- 
ference 
(cm.) 
Num- 
ber 
of 
cuts 
Latex 
yield 
for one 
day 
(c. c.) 
82 
124 
91 
79 
114 
189 
65 
135 
233 
97 
115 
65 
124 
84 
117 
99 
102 
96 
149 
210 
130 
93 
136 
130 
160 
153 
158 
129 
121 
97 
137 
111 
79 
161 
150 
110 
81 
108 
82 
115 
169 
90 
116 
153 
103 
105 
105 
84 
138 
91 
124 
106 
100 
105 
94 
103 
123 
117 
105 
102 
141 
110 
124 
140 
120 
113 
147 
121 
120 
Bark 
thick- 
ness 
(mm.) 
85 
110 
12 
90 
22 
153 
12 
140 
183 
48 
201 
70 
97 
66 
175 
77 
46 
100 
115 
490 I 
442 | 
164 
375 I 
85 
276 ; 
505 
132 ' 
151 I 
107 ' 
175 
125 
50 
15 
536 
167 
200 
22 
135 
34 
161 
230 
53 
198 
110 
123 
54 
46 
132 
65 
54 
167 
142 
130 
47 
95 
35 
130 
75 
65 
75 
113 
151 
46 
83 
112 
25 
147 
93 
54 
5.0 
10.0 
7,0 
9.0 
5.0 
11.0 
4.0 
6.0 
11.0 
6.0 
6.0 
7.0 
8.0 
12.0 
5.0 
9.0 
9.0 
9.0 
8.0 
7.0 
9.0 
4.0 
10.0 
6.0 
5.0 
10.0 
5.0 
11.0 
9.0 
10.0 
6.0 
5.0 
9. 1) 
4.0 
6. 
6.0 
4.0 
5.0 
5. 
5.0 
9.0 
8.0 
Rings 
of 
latex 
22 
24 
Tree 
No. 175_._. 
No. 176 
No. 177 
No. 178—. 
No. 179—. 
No. 180. — 
No. 181— . 
No. 182— 
No. 183— 
No. 184— 
No. 185— 
No. 186. . 
No. 187— 
No. 188— 
No. 189— 
No. 190—. 
No. 191 — 
No. 192— 
No. 193— 
No. 194— 
No. 195— 
No. 196— 
No. 197—. 
No. 198— 
No. 199— 
No. 201— 
No. 202—. 
No. 203— 
No. 204—. 
No. 205—. 
No. 206—. 
No. 207.... 
No. 208.... 
No. 209—. 
No. 210—. 
No. 211. .. 
No. 212.... 
No. 213.-. 
No. 214 ... 
No. 215—. 
No. 216— 
No. 217 
No. 218— 
No. 219.... 
No. 220—. 
No. 221 — 
No. 222.._. 
No. 223... 
No. 224.... 
No. 225.... 
No. 226— 
No. 227... 
No. 228.... 
No. 229... 
No. 230— 
No. 231— 
No. 232— 
No. 233... 
No. 234... 
No. 235... 
No. 236— 
No. 237... 
No. 238— 
No. 239... 
No. 240— 
No. 241... 
Total.. 
Average 
Circum- 
ference 
(cm.) 
Num- 
ber 
of 
cuts 
107 
112 
17C 
62 
152 
127 
127 
15] 
85 
95 
81 
124 
127 
122 
104 
102 
97 
207 
82 
112 
101 
100 
112 
129 
132 
122 
167 
82 
153 
119 
63 
110 
108 
95 
127 
i:s7 
130 
102 
126 
190 
99 
95 
123 
142 
92 
84 
98 
107 
130 
27, 324 
114.3 
Latex 
yield 
for one 
day 
(c. c.) 
16 
12 
295 
67 
163 
98 
8 
62 
92 
111 
113 
96 
100 
43 
127 
56 
44 
26 
150 
27 
70 
24 
16 
57 
39 
132 
62 
35 
91 
55 
120 
260 
101 
12 
39 
21 
9 
38 
18 
8 
14 
12 
87 
20 
61 
143 
176 
24 
13 
21 
17 
212 
106 
23 
104 
20 
10 
54 
77 
25 
55 
28 
54 
71 
22 
143 
22,136 
93.0 
Bark 
thick- 
ness 
(mm.) 
Rings 
of 
latex 
vessels 
6.0 
8.0 
5.0 
5.0 
13.0 
5.0 
6.0 
6.0 
5.0 
5.0 
12.0 
4.0 
8.0 
6.0 
8.0 
4.0 
8.0 
6.0 
5.0 
7.0 
To 
9.0 
"6." 6" 
"16.6" 
5. 
6. 
6.0 
10.0 
7.0 
946.0 
7.0 
20 
2,822 
20.9 
96522°— 26- 
