Ernest Warren 
341 
TABLE VII. 
Termes Natalensis Haviland. 
Correlation of the Coefficients of Variation of Small Soldiers and Laru;c Workers 
from 27 nests. 
Small Soldiers 
Unit = 0-15 
CO 
n 
CO 
0 
1 
CM 
0 
0 
27 
2U—258 
1 
1 
2 
259—278 
2 
1 
1 
1 
0 
0 
0 
3 
1 
9 
274—288 
1 
1 
0 
1 
4 
289—303 
1 
1 
0 
2 
0 
0 
0 
1 
304—318 
1 
319—333 
1 
1 
334—348 
349— 363 
1 
364—378 
1 
1 
S79—393 
0 
394— 4O8 
0 
409—423 
1 
1 
564—578 
1 
i 
irge Workers 
Unit = 0-15 
-187 
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CO 
SO 
1 
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1 
ss 
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A correlation table of the coefficients of variation of large soldiers and small 
soldiers was prepared ; but witliout actual calculation it was obvious that there 
was practically no correlation present. 
From this we gather that in any given nest when one caste happens, say, to be 
particularly variable, it does not follow that every other caste is correspondingly 
variable. From d priori reasons one would have expected that the variability of 
the different castes in a nest would have been closely related, if the variability is 
to be regarded as an inherited character. If, on the other hand, the variability 
is to be mainly referred to nurture or to the general environraetital conditions, the 
above results are intelligible. 
(11) Comparison of various Species. 
In Table VIII. are given the means, standard deviations and the coefficients 
of variation of the different castes for all the more commonly occurring Natal 
termites. 
