the chief of Deli Administrator Maatschappij and
C.W. Janssen, the director of Senembah Matschappij
Company and Medan Tabak Matschappij (Alkema,
1929). At the time of its establishment, this
institution was led by a doctor, who was on duty in a
plantation company namely Senembah
Maatschappij. The doctor is dr. W.A. Kuenen. He is
the one who put the principles of institution and
policy direction of this laboratory. In addition, he
also contributed much in a study about tropical
disease which infected many labors in plantation
(AVROS, No. 358). Along with W.A.P. Schuffner,
they discovered the correlation between the
environmental condition and the cause of a disease
or epidemic. Some previous researches and policies
were made by them then followed by other
plantation companies (Schoute, 1934). On the other
hand, they also had decreased the level of labors'
death in Senembah Maatschappij plantation from
136 death cases of every 1.000 labors in 1891 and it
became 10 death cases of every 1.000 labors in
1906. They applied several policies and regulations
such as maintenance of hygiene in barrack and
labors' residence, concerning on nutritious and
adequate food, and treating a sick labor with good
facilities and infrastructures such as hospital and
clinic in plantation (Schuffner and Kuenen, 1910).
Pathological laboratory had aim to spread widely
and give information about public sanitation issue in
East Sumatera. Besides, the propaganda of health
and hygienic life style was shared. That laboratory
was functioned to help doctors or medical experts
conducting research in this laboratory. In addition,
this laboratory also provided help to the doctors in
conducting a research. Therefore, this laboratory
would have qualified doctors in bacteriology and
serology. There were several activities done in this
laboratory such as prophylaxis vaccination (disease
prevention), treatment therapies and preparation of
diagnosis of disease cases (AVROS, No. 358).
Pathological laboratory is a medium to conduct
research and to diagnose various tropical diseases
existed in East Sumatera plantation at the end of 19
th
century. The research in it was done in order to find
the cause of a disease, the correlation between
symptoms and the environment with the epidemics
of disease in one region specifically plantation
(Volker, 1928). In its development, this institution
improved gradually. The improvement could be seen
from the number of conducted researches was 1.311
in 1910, and the highest improvement occurred in
1930 become 30.372, but it got downtrend in 1934
which became 28.553 (Kouwenaar, 1936).
In the early stage of operation of this laboratory,
all administrative activities were entirely supported
by the company of Deli Maatschappij, Senembah
Maatschappij and Medan Tabak Maatschappij.
Gradually, along with the development, there were
many plantation companies, private plantations, and
plantation hospitals turned to be the members of this
laboratory. The contribution of the members was to
give donation or membership fee every month. In
the period of 1909-1920, it was recorded that 45
plantation companies were the members of Medan
pathological laboratory (AVROS, No. 358).
The number of members progressively increased
particularly from rubber plantation companies. Each
member donated fund to this laboratory. The
calculation of contribution was based on the large
number of labors in each plantation. The plantation
which was the member of institution was obliged to
pay contribution fee of f. 0.50 for each labor per
month (Wolff, 1930). Except the contribution fee,
there was a contribution from Netherlands colonial
government. In 1918, Netherlands colonial
government issued a policy to assist operational cost
for the institution by giving f. 500 every month
(AVROS, No. 358). The next stage, operational
budget escalated every year. And then, the
management and distribution of the operational
budget of the institution was controlled by
governmental health institution namely BGD
(Burgerlijken Geneeskundige Dienst) (Alkema,
1929).
On 1
st
November 1920, there was a transfer and
collaboration occurred between laboratory
institution and plantation entrepreneur association
i.e. DPV (Deli Planters Vereeniging) and AVROS
(Algemeene Vereeniging Rubberplanters ter
Oostkust van Sumatra). This transfer was continued
even though the plantation condition was less
profitable in recent years. By this transfer, it caused
a change in the formation of the institution's
management, so the policy issued also changed
(AVROS, No. 358).
In the organizational structure of the institution,
it incorporated the board of directors which was in
1921 consisting of 2 representatives from DPV, 2
representatives from AVROS, and 1 person was the
director of laboratory institution. Moreover, the
institutional structure comprised of the director, the
vice director, laboratory doctor, assistant of
bacteriology and serology department, and the
secretary. Besides the organizational hierarchy
which mostly consisted of Europeans, there were
also staffs and employees from the natives
positioned as foreman, laboratory staffs, assistants,
attendants, office clerks, photographer and drivers
(AVROS, No. 358).
The first director was dr. W.A. Kuenen who was
on duty in the period of 1906-1916. During his era,
the organizational structure and institute's duty were
assisted by vice director dr. J.J. van Loghem starting
from 1908 to 1909 and then dr. H. Vervoort in
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