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265
Children Born in 1931.—The boys are 0.4 inches taller and
1.3 lbs. heavier on the average than the girls. The average minimum
weights of the boys is 2.1 lbs. more and their average minimum
height 0.1 inches taller than the corresponding figures for the
girls. The average maximum weight of the boys is 0.3 lbs. less and
their average maximum height 1.1 inches taller than the girls.
Children Born in 1930.—The boys are 0.2 inches taller and
0.8 lbs. heavier on the average than the girls. The average minimum
weights of the boys is 0.7 lbs. more and their average minimum
height 0.6 inches shorter than the corresponding figures for the girls.
The average maximum weight of the boys is the same as the girls,
and their average maximum height 0.2 inches taller than for the
girls.
Children Born in 1928.—The boys are 0.2 inches taller and
1.5 lbs. heavier on the average than the girls. The average minimum
weight of the boys is 2.3 lbs. more and their average minimum
height 0.4 inches taller than the corresponding figures for the girls.
The average maximum weight of the boys is 1.3 lbs. more than the
girls and their average maximum height is 1.1 inches taller than
the girls.
Children Born in 1923 and 1924.—The boys in this group were
1.0 inches shorter and 0.7 lbs. lighter on the average than the girls.
The average minimum weight of the boys is 3.2 lbs. less and their
average minimum height 1.7 inches shorter than the girls. The
average maximum weight of the boys is 4.8 lbs. more and their
average maximum height 0.7 inches shorter than for the girls. In
this group as a whole the boys are shorter and lighter than the
girls, but the former are a more uniform group: the girls exhibiting
greater fluctuations around the mean average.