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D A M 1 GEDUNG N A S I O N ~ JBOGOR

OLEH


LEKTOR DI FdCULTaS PERTILNLaN BOGOR
(bekss p e g a w s i B s l a i Penjelidikan Hama ~ ~ b u h 2 ~ i l )
U H I R DI T J U I S *

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V a d e feiten op t e klimmen tot cen h e l d e r i e z i c h t in de
~ l g e e e e n ewetten d e r n s t w d r , om d z a r d o o r d e f e i t e i l zelven be-

t e r t e leerea b e g r i j p e n ,

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aietdear h e t d o e 1 der wetenschap.

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ZUGO DE TRIES, q878.

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TO THE &EMORY OF IdY B E L O W PBRENTS

TO MY WIrn

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C m L C U L m VITAE

A few months be?ore my grsduation from the State School
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of l r g r i c u l t u r e in Bogor in June 1939, I hsd been approached

on i n s t i g a t i o n o f M r TT..E.W.CANPER

VISSER, at t h a t time Prin-h

c i p s l of the School, by t h e I n s t i t u t e f o r Plant Diseases on

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matter o f an appointment st the I n s t i t u t e . I: accepted t h e

a ~ p g i n t m e n to f J u n i o r issiatant Uycologist starting on July 1
of the same y e a r , thereby being the first Indonesian in t h i s

t"ne

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very spec i a l l z e d branch.
T h i s work in the phytopathologiosl field required a lot

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of knowledge of v a r i o u s sciences 811 connedted w i t h a g r i c u l -

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ture. Frequently I was dissatisfied w i t h my workt the lack of
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broader snd more thorough fundamental knowledge was keenly

f e l t as a great drawback,

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After a whole year of non-sctivity I was offered a new


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sphere of activity s t t h e Faculty of Agriculture in Bogor in

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July 1948, whereby I w a s enabled t o continue my studies at

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t h e Faculty. But n o t until 1950 1 could stsrt my s t u d i e s


b e a i d e s doing a full-time job as a phytopathological sssistant.

Only st the expense o f many s a c r i f i c e s I had been able t o ao-

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c o m p l i a h these httudics a d I g o t degree as an Lgricultural

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S c i e n t i s t in hsy 1 9 5 5 .

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Concluding this t h e s i s I w i s h to express iuy heartfelt

valued Promotor,profesthe f i r s t place t o my high
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e o r THUBG. But f o r h i m I would nevesvcontinued my s t u d i e s a d
under h i 5 i n s p i r i n g guidw-ce I have completed t h i s research
work. I sm greatly indebted to him and his w i f e for the way they always were willing t o a i d .
1 esteem it s g r e a t p r i v i l e g e t o have been able t o work

once again under t h e guidance of my second Promotor, professor
VAN SCHUYLFX3ORGII e s p e c i a l l y i%completing the p e d a l o g i c a l
part o f this resesrch work.
thanks*-

With f e e l i n g s of g r e a t gratitude I r e c a l l t h e Nay p r o f e s -

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s o r U f T W sided and i n s p i r e d m e in the for me very difficult

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o f the trunk znd t h ~S r s c c h e a