J. A. Harris 
463 
TABLE IV. 
Difference between Mean Nuviher of Ovules per Locule fur 
three Series of Ovaries. 
B— A 
C— B 
C— A 
Number 
of 
Shrub 
Difference 
Difference 

Difference 
^■ 
and 
Probable Error 
E diif. 
and 
Probable Error 
E diff. 
and 
Probable Error 
E diff. 
11 
•040 + -034 
1-16 
•203 ± -039 
5^14 
•243 + -037 
6^55 
12 
- -323 + -053 
6^1S 
•567 ± ^049 
ir47 
-243+ -047 
5-14 
13 
•133+ -053 
2^51 
- r()70+ ^043 
24-82 
- -937 + -059 
15^85 
14 
•133+ -065 
2 •OS 
•015+ -061 
•24 
-148+ -054 
2-73 
15 
•193 ± -045 
4^31 
•627 ± -046 
13-71 
-820+ -046 
17-75 
16 
- ^085 + •OSS 
1-46 
1 -049 + ^045 
23^21 
-964 ± -052 
18-58 
17 
•263 + ^048 
S-44 
•593 + -052 
11-30 
-857 + -054 
15-83 
18 
•333+ ^053 
6-34 
- •213+ -046 
4-65 
-120+ -049 
2-46 
19 
•064 ± •OSS 
Ml 
•604 ± •OSl 
11-89 
-669 ±-047 
14-29 
20 
•449+ •OSS 
7^70 
•536 ± ^047 
] 1 -50 
-983 + -052 
18-83 
21 
•319+ •OSO 
6-35 
•294+ ^035 
8 -SO 
-613+ -050 
12-19 
•051 + ^049 
1 ^03 
•283 + -037 
7-68 
-334+ -043 
7-70 
23 
•080 +^060 
1 33 
•121 + ^056 
2-17 
-201 + -060 
3-37 
2k 
- •102+^064 
1-60 
•511± ^054 
9-S3 
-409+ -053 
7-77 
25 
•729+ ^076 
9^S5 
•713+^090 
7-90 
l-443f098 
14-66 
•140+ ^074 
1^88 
•525 + ^057 
9-21 
•665 + •OSS 
12-03 
•367 + ^060 
6^10 
•670+ •OSO 
13-51 
1^037±^051 
20-40 
29 
- •280+^033 
S^Sl 
■533+ '046 
11-57 
•253+ ^044 
5-81 
30 
•130+ -043 
3 03 
•340+^041 
8-24 
•470+ ^039 
12-18 
31 
- •377+^044 
8^46 
•603 + ^044 
13^84 
•227± ^042 
5-37 
32 
- ^036+ ^045 
•80 
•133+^039 
3^45 
•097 + ^043 
2-24 
33 
-•29 J +-039 
7^37 
•476+ -048 
10-01 
•185+ ^046 
3-98 
3k 
•036+ -om 
•S7 
■558+ -051 
10^87 
•593+^054 
10-93 
35 
•240+ ^036 
6 •65 
■100f031 
3-19 
•340+^037 
9-29 
37 
•427+ -065 
6^59 
- •230+^057 
4-04 
•197+^065 
3-03 
38 
- -187 + -036 
5^16 
M70±^044 
26-65 
•983 ± -043 
22-66 
39 
•307 ± -049 
6^22 
•050 ± '040 
1-26 
•357+ -050 
7-10 
ko 
•662 ± -OSS 
12^13 
•453 ± -044 
10-26 
1-115+ -051 
21 '83 
ovules is higher in the developing series in 20 cases and higher in the eliminated 
series in 8 cases. This is a deviation of only 6 slirubs from the theoretical 14 of 
each class and hence cannot be regarded as very strongly significant. So far as 
the evidence goes, it indicates that ovaries bearing a smaller number of ovules are 
less likely to continue their development towards maturity than those having a 
larger number. 
Even if there were a strong selective elimination of ovaries with a smaller 
number of ovules per locule, we would not expect to detect the full intensity 
of such a selective elimination in a comparison of the two series A and B, for the 
simple reason that we are comparing an eliminated series of ovaries with a series 
in which further elimination is to be expected. 
If it is true that the elimination is not yet complete in the B series, and that 
the failure of ovaries to develop is not random, but selective, we would expect 
59—2 
