474 
Selective Elimination in Staphylea 
To make our comparisons more comprehensive and to free them in so far as 
possible from the influence of the actual magnitudes, we may now make use of the 
relative variabilities as expressed by the coefficients of variation. 
The differences between the tliree series for the coefficients of variation for both 
ovules per locule and ovules per fruit appear in Tables XIII and XIV* 
TABLE XIII. 
Comparison of Coefficients of Variation of Number of Ovules 
per Locule in the three Series. 
B— A 
C— B 
C— A 
Number 
of 
Shrub 
Coefficient 
of 
Variation 
Diii. 
Ooenicient 
of 
Variation 
Diff. 
Coefficient 
of 
Variation 
Difi. 
E diff. 
E diff. 
1 -RCl ~ -'^1 
1D 
9-ltfi 
' 2' 
9-1 -ffi 
1" 
— o"1d + "51 
6 •90 
5'57 + ^44 
12'DD 
~ 2-41 + -50 
4^82 
u 
2-19+ -72 
3 •04 
-2-55+^67 
3-81 
- •36+^60 
•72 
15 
- -94+ -40 
2^35 
- •13+-38 
•34 
- 1 '08 + ^40 
2^70 
10 
1-82 + -58 
3-14 
-4^03+ -52 
7^75 
-2-84± '49 
5^80 
17 
-1-12 +-43 
2^60 
r62+ -45 
3^60 
•50 ±^47 
1^06 
18 
3-31 + -52 
6^36 
-2-85+ ^46 
6^19 
•45+ ^46 
•98 
19 
■67 +-57 
M7 
-4^93+ ^49 
10^06 
-4^26±-45 
9^47 
20 
2-52+ -61 
4^13 
-3-59+ ^46 
7^80 
-6^11 + ^55 
11-11 
21 
-2-81 + -47 
5^98 
•34+^32 
ro6 
-2^46f46 
5-35 
22 
-1-27 + -46 
2^76 
-r93+^34 
5^68 
-3^20+ -40 
8^00 
23 
-1-76 +-70 
2^51 
•67 + ^64 
ro5 
-r09+^69 
r58 
2k 
1-02 +-65 
\-bl 
-4-02+ ^54 
7-U 
-3^00+ -52 
5^78 
25 
-2-00+ -66 
3^03 
7-34±^70 
10^48 
5-33+ ^80 
6^66 
26 
•31 ± -69 
•45 
3-66+ ^56 
6^53 
-3^36+^56 
6^00 
27 
•25 +-59 
•42 
-4^42+ ^47 
9^40 
-4^17 + ^50 
8^32 
29 
1^96+-50 
3^92 
-2^10+ •SO 
4-20 
- ^13+ -46 
•28 
30 
1^43+^52 
2-67 
- 2^14+ ^48 
4^50 
- •71 + ^45 
1^58 
31 
1-32+ ^45 
2-93 
- 2^09+^44 
4^52 
- •77+^41 
1^88 
32 
•24 ±-42 
•57 
- 1^12+^36 
3^11 
- •88+^40 
2^20 
33 
•72+ -56 
1^28 
-2^14+^52 
4^11 
-1 •42+^50 
2^84 
3k 
2^74+ ^04 
4^22 
-4^93+ •SI 
9^67 
-2^20+ -54 
4^07 
35 
-2^69f32 
8^4] 
•18 +^28 
•64 
-2^52±^32 
7^87 
37 
-3 •set -55 
6^47 
•03+^47 
•06 
-3^53+ ^55 
6^42 
38 
•69 + -44 
r57 
1-51±^48 
3^14 
2-20+ ^47 
4-68 
39 
•07+^44 
•16 
•48 +^35 
r37 
•55 + -45 
1^22 
ko 
-M8-f ^53 
2^23 
-2^49+ ^39 
6-38 
- 3^67 + ^49 
7^49 
The results may be tersely summarized for the individuals in Table XV. Here 
the frequencies for positive and negative differences are shown, both for all the 
differences and for probably significant differences, i.e. for those which are 2-5 or 
more times their probable error. 
* Naturally the significance of the sign as indicating the tendency of selection to increase or 
decrease variability is the same for V as for cr. 
