London's Pulse: Medical Officer of Health reports 1848-1972

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London County Council 1905

[Report of the Medical Officer of Health for London County Council]

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1347. Children of series B. Ten years old last birthday, giving standards.

Heights centimetres.I.II.m.IV.V.VI.VII.Totals.Heights centimetres.Approximate inches.
G.B.G.B.G.B.G.B.G.B.G.B.G.B.
1061110642
107
108
10943
110110
111
11244
113l1
114l111445
1152114115
11613321111
1171124121146
11812331111
119142747
120331341217120
1211432425122
12211151562623948
123312311515333
12415101358214549
125111212108132454125
12621414811161663
1271111491612345250
12813410162116482287
12911519101114441171
130132615720146138713051
13121217172023610199Mean Height.
1322142121215188161192
133111138171461237652
13411135141965165
1351117141813410271135
13614126101291016553
13717358582342
13822451585114354
139116495561139
14033872312714055
1411410834131
1421535344126
14323361456
14422221210
145I14I18145
146211457
1471111116
1481I—158
149
150112150
151—'1159
15211
153160

The mean height of this group of children is 131.5 cm., about l.6 cm. higher than the
average height. Setting out the table on a squared diagram of which each square horizontally represents
a height of one centimetre, and each square vertically represents two scholars, marking the girls off
above the central horizontal line of each standard and the boys similarly downwards diagram is
obtained. The mean height being represented by the vertical white line on this diagram (Diag. 2), a very
good idea of the distribution of children of this age group is obtained; the 12 per cent. dullards are also
seen to be nearly all below the mean height, whilst the two or three per cent. exceptionally clever or
precocious children are generally above the mean.
A similar distribution of the other age groups shows that at any given age the taller children
are found in the higher standards. Apparently mental efficiency, as measured by educational progress
in school, is associated with physical efficiency as determined by growth. This is in accord with the
facts noted by Dr. Porter in his measurements of St. Louis children, and since confirmed by other
investigators.

The distribution of 4164 of the girls of series B is given at each year of age in the various standards.

Age.III.III:IV.V.VI.VII.
14-15941113
13-141539125194214
12-139527916219675
11-1217118181237819
10-1119332342519412
9-10541473399881
8- 9139296133111
7- 822888111