1 86 Pigmentation Survey of School Chilclre^i in Scotland 
The last column in above table has of course to be compared with each of 
the values for the various classes of hair colour and eye colour and with the 
density figures. The values of r, the correlation coefficient, and r/E,. are given 
in the following tables (Tables XXXIV. and XXXV.): 
TABLE XXXIV. 
Foreignei'S and Density. 
Correlation between 
r 
r 
E, 
Foreigners and Density 
„ and Number of families in 2 rooms and less ... 
,, and Number of families in 3 to 9 rooms 
,, and Number of families in 10 rooms and upwards ... 
•9456 
•7555 
- ^7793 
- -3362 
37^46 
7-38 
-8^32 
-1-77 
These results are interesting. They show that foreigners tend (1) to reside in 
most densely populated areas, (2) to reside in districts where families live in one 
room or two rooms, and (3) not to reside as a rule in districts where families live in 
three to nine rooms. There is not a very decided tendency against their residing 
where families live in large houses with many rooms. 
The following are the results of the comparison between foreigners, density and 
pigmentation : 
TABLE XXXV. 
Correlations between Density of Population, Foreigners and Pigmentation. 
Colour 
Density 
Foreigners 
r 
r 
r 
r 
-B(,-=o) 
Hair: 
Fair 
- -805 
3^16 
-•788 
3^09 
Red 
- •001 
•005 
- ^093 
•37 
Medium 
•716 
2^81 
•757 
2^97 
Dark 
-•195 
•77 
- ^243 
•95 
Jet Black ... 
- ^460 
rsi 
- ^497 
\-db 
Eyes : 
Blue 
-•612 
2^40 
-•668 
2-62 
Light 
•090 
•35 
•219 
•86 
Medium 
•560 
2^19 
•523 
2^05 
Dark 
•533 
2^09 
•514 
2^02 
The striking feature in the above table is the great similarity in the results in 
comparing foreigners with pigmentation and density with pigmentation. The 
results show the futility of attempting to draw any conclusions as to the probable 
predominant colour classes of foreign immigrants from these tables since the 
