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216
Children Born in 1925.— The boys are 0.3 inches taller and 1.1
lbs. heavier on the average than the girls. The average minimum
weight of the boys is 1.1 lbs. more and their average minimum
height 0.9 inches taller than the corresponding figures for the girls.
The average maximum weight of the boys is 0.4 lbs. more and their
average maximum height 0.8 inches smaller than for the girls.
Boys at this age are accordingly as a group heavier and taller than
girls, and exhibit a smaller range between the extremes. This
finding is much the same as for 1929, dealing with children bora
in 1924.
Children Born in 1924.— The boys are 0.5 inches taller and
1.5 lbs. heavier on the average than the girls. The average minimum
weight of the boys is 1.5 lbs. more and their average
minimum height 0.7 inches taller than the corresponding figures
for the girls. The average maximum weight of the boys is 0.7
lbs. less and their average maximum height 0.2 inches shorter than
for the girls. Although heavier, the boys show a general retardation
in the rate of increase in stature. These children belong to the
same group as were dealt with in last year's report.
Children Born in 1922.— The boys are 0.5 inches shorter and
2.2 lbs. heavier on the average than the girls. The average minimum
weight of the boys is 0.2 lbs. more and their average minimum
height 0.2 inches shorter than the corresponding figures for the girls.
The average maximum weight of the boys is 0.2 lbs. more and their
average maximum height 0.3 ins. shorter than for the girls. This
group of children are similar in their relationships to the 1924
group.
Children Born in 1918.— The boys are now on the average the
same height but 1.0 lbs. lighter on the average than the girls. The
average minimum weight of the boys is 0.3 lbs. greater and their
average minimum height 0.4 ins. taller than the girls. The average
maximum weight of the boys is, however, 4.3 lbs. lighter and their
average maximum height 2.0 ins. taller than for the girls. In this
group as a whole the girls are taller and heavier than the boys, but
the latter are a more uniform group: the girls exhibiting greater
fluctuations around the mean average.
The average minima of heights and weights are taken by selecting
the shortest and lightest scholar in any particular group for
each school and taking the average of the figures so obtained. The
average maxima heights and weights are also obtained in the same
way.