48

SECOND ANNUAL REPORT OF THE HARCOURT BUTLER INSTITUTE

    Water samples from Hlawga Lake and from the Irrawaddy River at
Kemmendine have been tested regularly throughout the year to ascertain
the occurrence of seasonal variation in Hydrogen Ion Concentration.
Singularly little such variation has been found. The observations made
are given at page 7.

    Malaria Bureau.—During the year the Local Government approved
the opening of a Malaria Bureau at the Institute. Dr. E. S. Feegrade,
I.M.D., is in charge assisted by Sub-Assistant Surgeon, U Tin. The
Bureau maintains provincial collections of mosquitoes, larvivorous fish,
etc., collaborates with field survey parties, and undertakes the teaching
of students in Malaria work. During the year, work on these lines has
been carried out.

    Investigations.—The mosquito fauna of two tanks near the Institute
has been followed closely day by day in the hope of ascertaining some
of the conditions influencing the change of species from season to
season. The study has proved an interesting one and is being
continued.

    A considerable collection of larvivorous fish from various parts of
Burma has been identified with the help of Dr. S. L. Hora of the
Zoological Survey of India.

    Investigations are also in progress to test the efficiency of various
locally produced mineral oils, as larvicides.

    Museum.—A number of new specimens and models has been added
to the teaching museum during the year. An urgent need exists for a
Curator, and a proposal has been submitted to Government for the
employment of a selected Sanitary Inspector to do the combined work
of Museum Curator and Storekeeper, as well as to supervise the attend-
ance and discipline of the classes under training.

    Buildings.—A small workshop has been constructed adjoining the
engine room and engine mechanic placed in charge. It has already
been found possible to make a number of models for teaching in this
workshop.

    Estimates for the erection of a small animal house have been sent
to the Director of Public Health for sanction.

    The cold store has not yet been taken over from the Public Works
Department as the temperature readings are not satisfactory.

    In conclusion I wish to record my thanks to the staff of the Institute
for the hearty support they have given me during the first full working
year.

G. JOLLY, Lieut.-Col., I.M.S.,    

Director, The Harcourt Butler Institute
of Public Health, Burma.