SUPPLEMENT TO THE ANNUAL REPORT OF THE KING INSTITUTE OF
PREVENTIVE MEDICINE, GUINDY, FOR 1927-28.
INTRODUCTION.
Reports and papers that are of sufficient general importance are published by
members in current medical journals. Occasionally other reports of investiga-
tions carried out at the express wish of Government are published separately as
Government orders. In addition to these two classes of reports, there are many
other reports not of great general importance but of some local importance and
of sufficient general importance to merit publication. Hitherto there has been
no means of publishing such reports except as appendices to the Annual Report
of the Institute. Accordingly Government were asked to allow the publication
of a supplement to the Annual Report which they kindly sanctioned in G.O.
No. 640, P.H., dated 20th March 1928. Hence the publication of this first
supplement.
It is intended to publish as far as possible only complete reports. Thus
preliminary reports will usually not be published but will be held back until the
complete report has been made. To cut down expenditure in reproduction, plans
and diagrams and photographs included in the original reports will not be included
except when essential.
Malaria surveys of the Mopad area are published as a typical example of the
harm done by excessive irrigation in the absence of proper drainage. It is
useless to enrich the ryots by helping them to grow more rice and at the same
time to poison them with malaria.
Malaria survey of Udayagiri and Duttalur affords an interesting contrast
with Mopad and show the relation of malaria to rainfall and how an epidemic
can become severe enough to cause the infection of nearly 100 per cent of the
children present.
Malaria surveys of Vizagapatam harbour and town are included because of
the present and future importance of that area.
The opportunity is taken to publish a full report by the Sewage Analyst
working under the Water and Sewage Purification Committee.