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216

NATURAL INHERITANCE.

TABLE 20.
OBSERVED AND CALCULATED EYE-COLOURS IN 78 SEPARATE FAMILIES, EACH
OF NOT LESS THAN Six BROTHERS OR SISTERS.

 
   

Eye-colours

of the

     

Number

coloured

of the

light

children.

eye

Light.

Parents.

Hazel.

Dark.

 

Grandparents.

 

Total

child-

ren.

Ob

served.

I.

Calculated.

II.

III.

Light.

Hazel.

Dark.

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

...

...

...

1

1

1

1

1

...

...

...

...

...

...

...

...

...

...

...

...

...

...

...

...

...

...

...

....

...

...

...

...

...

...

...

2

2

...

...

...

1

1

1

1

1

...

...

...

...

...

...

...

...

...

...

...

...

...

...

...

...

...

...

..

...

...

...

...

...

...

...

...

...

...

2

2

2

2

2

2

...

...

...

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

3

3

3

3

3

3

3

3

a

2

2

2

2

2

2

3

2

1

1

1

1

3

3

3

3

3

...

...

...

...

...

...

...

...

...

...

...

...

...

...

...

...

1

1

1

...

...

...

...

...

2

2

1

1

1

...

...

...

...

1

1

1

1

1

1

1

...

...

...

...

...

...

...

...

...

...

...

...

...

...

...

...

...

1

1

1

1

1

1

...

1

1

1

2

1

2

3

3

2

2

...

...

...

...

...

6

6

6

6

7

7

7

7

7

8

8

8

8

8

8

12

7

10

12

7

8

9

9

9

10

7

10

6

10

7

8

6

9

6

11

6

7

6

7

8

9

11

6

6

6

5

7

7

7

7

7

8

8

8

8

7

7

12

7

4

12

6

8

9

9

7

10

7

9

6

10

4

5

2

1

1

3

4

6

6

6

7

10

5.3

5.3

5'3

5-3

6.2

6.2

6.2

6-2

6.2

7-0

7.0

7.0

7.0

7'0

7'0

10-6

6'2

8-8

10-6

6-2

7-0

7-9

7-9

7-9

8-8

6-2

8-8

5-3

8.8'

6.2

5'4

1.7

2-5

2-7

3-1

1-7

2-0

41

5.5

6-2

7-0

8-6

5.3

5'3

5.3

5'3

6.2

6.2

6'2

6'2

6'2

7-1

7'1

7-1

7-1

7-1

7'1

10'7

5-8

8'3

10'0

5.1

5-8

6.6

6.6

6-6

7'3

5'4

7.7

4.0

6-7

4-7

4'6

4'4

5.1

2.5

4'5

3-0

3-6

5 0

5.7

6-6

7'5

9.1

5.6

5'6

5.6

5.6

6.6

6.6

6.6

6.6

6'6

7'5

7'S

7-5

7'5

7 5

7'5

11'3

6.4

9.1

10'9

6'0

6.9

7-7

7'7

7-7

8'6

6'2

8'8

5'0

8-3

46

4.8

2.2

2.5

1.2

2-2

1-5

1.8

4.9

5-7

6.6

7'4

9.2