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PROP. DR JAN TINBERGEN

THE HAGIT^., 17 February 1954
Sijzenlaan ^•^
Ray C,
Professor and MrsA?hittlesey,
c/o University of
Pennsylvania,
Philadelphia (Pa),
USA

Dear Mr and Mrs Whittlesey,
Often we are thinking of the very pleasant
time we had in Haverford and of the great part
you had in making this time so extremely attractive to us. My wife is rememhering the various
fine trips she made vdth you, I am reraeinhering
the various discussions we had hoth at the College
and at some other occasions, and both of us
inparticular are remembering yotir visit at
St Nicholas eve. All this and so many other
things can not be forgotten, and the only hope
is that you some time will be at the other end
of the ocean in order that we may see you with
us. Meanwhile a little book about Holland was
sent to you, and we do hope that this may somewhat
stimulate the idea of coming to Europe.
" e hope you are both well; all of us here
are in good health and busy.
With best personal regards.

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