No.422] QUANTITATIVE STUDY OF VARIATION 139 

































































































































































4 OO 
HHH " EH : 
ee aR Li 
LLLI. 
viii 
FFH- TETTE 
Se ee ' Liu 
Pug ET 0 in rl 
"-—- HEI 
ETT Bim 
mg eu Lu Tj 
HH H 
BE oe 5 LL 
S Th T1 
ELIT EI 
FT LEE itl 
lh 1l 
30 40 50 60 70 
hi u 5) 6l 71 8l 
W Fic. 29 
pi E 
~ r.i 
55 ni 25 
20 =n Gam 
TTE. 20 ee n ee Gee ee —4— 
Bey g L—1—3 cuna = Se 8 ee ee 
aaa ta Ge 5 LIE. E IEEE LÀ EJ 
SLET : 
5 4 — $f n n a 
FIT = L—— = = L 18 1 1 1 — 331—193 
LIII) LERLI. a! Bis FR ea ee 
t arii 
of Tit wo — 
Uhl Oe ee ee. eee 
rp TERI LIS 1 1] Enana 
b Ll Mu NE ok DO GS E Gs Ke oe es 
Lhi 
LIM | aur 
Lil " 
PX. P D 5 
a à " uo 50 a 
Fic. 28. Fic. 30. 
Fic. 28. — Aster prenanthoides Muhl. sind curve of 176 heads —— on October 8. Classes 
oubled. ean = 26.335237 + .153066; mode = 26-27; 010607 + -108234 
Fic. 29. — As gí T Muhl. Disk curve of 117 ai Per on a Sepii 27. Classes 
oubled. Mea 7356 + .248547 ; modes s 1; o= 3.985839 + -175749- 
llected on September 3o. Classes 
n= 8547; m = 56-57 
Fic. 30. — Aster b Muhl. Disk curve of r43 heads co 
do ubled. Mean = 51.713286 + .281728; modes = 45-46, 517525 7 = 4-994779 = .199211- 
