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1 he 3 4 5 6 7 % 
A TYPICAL CHART OF FAMILY BALDNESS (Chart 3) 
Generation I. I 1 had heavy hair. I 2 was bald. 
Generation II. II 1 was bald. II 2 is unknown. II 3 is also unknown. II 4 was bald. 
II 5 became very bald at forty. II 6 was not bald but her family history is unknown. 
II 7 had heavy hair. II 8 was bald. 
Generation III. III 1 and III 2 died ininfancy. III 3 was not bald herself but was a carrier. 
III 4 was bald. III 5 and III 6 both became bald at forty, showing the same pattern 
as their father. III 7 had thin hair. III 8, III 9 and III 10 are questionable. III 11 
has heavy hair. III 12 is not known. 
Generation IV. IV 1 has a bald spot at the back of her head. 
IV 2and IV 3 both have very 
thin hair. 
IV 4 became very bald at forty, having the same pattern as his father. 
7 all have a normal amount of hair. IV 8 has a normal amount of 
IV 5,1V 6and IV 
hair. (Fig. 6.) 
ie 
THE HAT IS NOT TO BLAME 
[wo views of the same individual, showing that the bald pattern is above the point where the 
hat binds the scalp. If baldness were due to the hat, it would be expected to begin at the 
line where the hat binds the head and, according to theory, cuts off the supply of blood. 
As a fact, the baldness is distinctly a matter of inheritance; it may appear in families where 
tight hats are worn; and on the other hand no amount of hat-pressure will cause it to appear 
in families where the hereditary determiners are not present. (Fig. 7.) 
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