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64
officer on the staff of the public health department. Stricter classification of the cases
was adopted and distinction was made between those in which several examinations
of sputum had given negative results, and the cases in which examinations of sputum
had demonstrated the presence of tubercle bacilli. The arrangement for the admission
of the former class into " observation " beds has been continued, while modification
has been made in the method of dealing with the " positive " sputum cases in
which, from the clinical records submitted with the application, the prospect of
permanent benefit from sanatorium treatment appears to be doubtful. Arrangements
were made for the examination of such cases by a clinical medical officer on the staff
of the Council. This modification was made in 1921.
The value of revised methods of selection may be seen in the following tables.

It will be noticed that 124 (or over 78 per cent.) of the 158 cases were reported
as not suffering from tuberculosis. Of the 34 cases diagnosed as tuberculous, 10 were
considered to be " arrested " cases not requiring active treatment; only 24 (or 15
per cent.) of the 158 cases being recommended for treatment.
The subsequent results of observation in hospital are shown in the following
table:—