10 
BULLETIN 30, PORTO RICO EXPERIMENT STATION. 
CO 
<» 
o 
o 
•<s> 
o 
*~ 
Pi. 
v. 
a> 
W 
pa 
< 
c a. 
> 60 
o 
Eh 
8 
© 
CM 
CM 
© 
© 
oo 
© 
© 
© 
CO 
© 
CM 
© 
"3 
03 
a 
.2 
© 
'C 
03 
P c>j co t-3 »h co *A co cm — *i 
CO CO 00 00 ■>* t> "5 r+ 'i-4cM ' »H — '< CM rt 
^!CONNCC»NMN®0> 
fc©^©i-5^r^coCMt^cOcNoo 
~CNCO — CO !N CM — — 
NOSCflN'*^ KONONtOiiMN 
© oc cm © cm © io> oocor^©cococco0'<* 
cm i^oonv r-i 
OKCOOOO^CO r^. © co >c © cm © oc oc 
^ 
c^© — icascMiOTf — -^cm©© 
^ io cc cm e<i irf »h ro cm cm r-i *-h 
oc cm co oo co co oo rf NNccoccNaa; 
^iOhONOhNCh^NN 
feOfHTTi-HlO^CMrHT-l^'eNi 
cm © cm i-h © cm oo co Tfi t- © t- ■*»• r-- © ^c 
s.'OCOCONCB'tr-N^ONO 
■«s5 
S3 ^ ■* «-H i-H kC JT'S^cm CM i-< — i t-4 
o 
co 
^NaNcoco m co © © i 
SOW 
4SCMCO 
'-5 
4S coco 
►5 
■Scm'co* 
goo 00 
•Scmco 
53 . . 
0C -+: CCtt<0»0 
CM CO C^^rt CM l-H CM CM* 
iH " CM i-i t-J ">-(i-( 
"5 O ■* tC » t^ 
' CM" — •& CM i-< 
CM O0 CM CO i-H CO 
" i-J io co <-! 
CO CM © — 
-11(5 rtOO 
ce<ccooN ^NNi-oMineoH 
I-- t-~CM © CM CM 
p « w 
>9 
oo oo Tt< r- r>- io ic r- t- cm r— © n©ncec-h-< -^ ■* >o ■* m Tf io "5 io 
© O i—l O O O C © O — © © — — © © i— ' —< i-H HHHrtrtr«HHH 
©©©©©03©0^©©©OS © © © © © CTi © CT>Cfc©©©C2©©© 
o.S 
M 
_5 
4-: 
C 
p. 
a 
o — 
*■£ 
pV§.8 
8 ^ w 3 
g bCt*c 
_, « «S b o S 
o T t; - a,' © 
ce c« cs c •- in 
2 — a, cq W W 
85 
C fl 
8^' 
of ce 
o 
O 
c 
'tic 
C C3 
^d 03 
S DO 
5 c« 
C, '- 
C OS 
a 
03 — 
CM CO — CM-HCMr-lCM 
cccoooooo 
trt£MitjCWM;txCfcCbc 
.5 .S .S .£ .5 .9 .S -S .£ 
'43 +j '43 '■£> "-P "+i '-^ +j «a 
pcccdaccc 
C C Cv C C 
CC 
bC 
nS 
— = 
> 
■c 
gg 
0J 
3 
* 
CO 
o 
DO 
O 
Q 
o 
Oh 
c 
X! 
Ch 
o 

03 
O 
c? 
x) 
a 
« 
b£ 
a 
o 
•o 
a 
S3 
CD 
o 
Xi 
y- 
+» 
*a 
> 
u 
S3 
Si 
03 
1 
O 
e 
— 
03 
£ 
>, 
c 
*i 
~eb 
to 
CO 
03 
C3 
o 
X 
> 
03 
05 
CD 
u 
CD 
'ro 
P 
o 
o 
a 
o 
CD 
X 
03 
© 
03 
T3 
a 
_© 
03 
O 
C 
■s 
o 
d 
CD 
CO 
oc 
© 
CM 
© 
t~ 
•H 
S© 
03 
CO 
>> 
CD 
X 
CC 
X 
° "3 
r/- ? 
03 cct 
a 
CO 
■a 
C 1 co 
•— s 
© s 
3 o 
lo 
— to 
"£ co 
© © 
* 3 
&.'^3 
_ 3 
03* 
s & 
n 
CD 60 
X'C 
+J o 
co iF 
cp 3 
E^2 
© 
T3 co 
© CD 
73 © 
*> 2^ 
CD 6C 
© 3 
2 * co - 
i^- 1 r/l •CO 
— r^ ^ e8"3 
i|*^o! 
^ 03 © C2 
2"E-£ «-© 
— ®.S2 £ - 
-cxx S- 
5^** BIS 
'OcJp W 3 
3 CD S3 03 g 
^•3 6cj; © 
co co 3 2*S 
T' £ ^ £ § 
3! © ^ 3 
2c3g£o 
Ci fc © 3 
■si I ^ &o 
^^2.£>»§ 
-|g^S£ 
V- "* +3 p,© O 
-3 3 3 — ^ *- 
© O 2 03 £_ 
d 2 © tr © "3 
E £ co -r so S3 
O'+aX o C« 3 
«- on ij V- 3 
k!"*"l3 co © ©5- 
^5 « o 3 +-~ * ° 
ra^^n o3 c^ 
S o£3^?J 
»?" fl u o t- - 1/ 
©O feP 
-5 © c .,© 
-|2 2 ^ ce 
« W -*»3 3S 
<=>x 
- X 
- o 
© - 
3 3* 
O «3 
'cc © 
r^ CO 
X O 
c- O© 
s3>2g^ 3 3 S« 
f_i <, f 1 ^* i-i — g w 
© 03 
r 6 £ 5 
— ,_ w CO 
DO 
