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

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London County Council 1919

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

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36
the Poor Law; 300 removed from the register (died, discharged or removed to lunatic asylums) and 374
still under consideration.

During the year 550 cases were medically examined and classed as follows:—

Type.Male.Female.Total.Type.Male.Female.Total.
Idiot131730Not defective91322
Imbecile6973142Evidence insufficient for proceedings61218
Feebleminded146182328
Moral imbecile2810Total245305550

Dr. Shurubsall has commenced an analysis of the cases examined under the provisions og the Mental
Deficiency Act, 1913.
The chief causes of deficiency would appear to be simple primary amentiajoccuxring in children of
relatively inferior stock, although a history of actual mental deficiency in preceding generations was
obtained only in a limited number of cases.

The frequencies of the chief types are set out in the accompanying table; although these types form a convenient classification they do not necessarily express actual causes of the deficiency:—

Type.Idiot.Imbecile.Feebleminded.
Primary amentia56602832
Mongol.141352
Cretin1408
Microcephaly14336
Oxycephaly—1—
Hydrocephaly52210
Cerebral paralysis8014733
Spinal paralysis4710
Pseudo-hypertrophic muscular dystrophy—11
Epilepsy104250106
Blind15109
Deaf51412

The diagnosis of deficiency has been based on the conduct of the individual as shown by his re-action
to his environment, supplemented by his performance to order in the case of certain definite mental tests.
Since the Binet-Simon tests are required in any report to the Board of Education these have necessarily
to form the basis of examination of all cases of school age, and the method has been employed with minor
modifications to those of other ages.
The relation between mental and chronological age is shown in the accompanying tables which
distinguish between the cases examined and deemed defective within the meaning of the Mental Deficiency
Act, 1913, and those examined under the provisions of the Elementary Education (Defective and Epileptic
Children) Acts, 1899-1914. In the latter case the results for children deemed ineducable, those capable of
education in a special school, and those deemed suitable for a further trial in an ordinary school, are shown
separately.
The decisions with regard to children are based on the history of their conduct, their response to
graduated mental tests, evidence as to their educational attainments, and any facts which are known as
'' street intelligence," capacity for playing games, occupations outside school (if any), and the like.

Cases deemed defective within the meaning of the Mental Deficiency Act, 1913.

Chronological age.Mental age.Total.
1.2.3.4.5.6.7.8.9.10.11.12.15.Adult.
1---------------
24-------------4
332------------5
4332-----------8
512754----------28
61518426-1--------82
751761182372--1-----278
8314491345232------212
91726594018431------168
10141546332688211----154
11111554353315741-----175
1291142261718133211---143
139122536311919102-1---164
14482731262519161071---174
1533151819223932291152--198
16127131320575837141151-239
17-2222819172815221-100
181232291818171212--87
191---2572085-31-52
2011-236118114-1--48
Adult-4161021526663321313--281
Total19025153931121418527525721010235283-2,600