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␈↓ ↓H␈↓␈↓βS␈↓∧ Artificial Intelligence Laboratory, STANFORD UNIVERSITY, Stanford, California 94305

␈↓ ↓H␈↓∧Telephone 415 497-4430␈↓ 
≥July 25, 1979 




␈↓ ↓H␈↓Prof. Tang Chih-sung
␈↓ ↓H␈↓Institute of Computers
␈↓ ↓H␈↓Academia Sinica
␈↓ ↓H␈↓Peking, China

␈↓ ↓H␈↓Dear Professor Tang:

␈↓ ↓H␈↓We␈α∩are␈α⊃glad␈α∩to␈α⊃hear␈α∩that␈α⊃you␈α∩have␈α⊃obtained␈α∩approval␈α⊃to␈α∩accept␈α⊃our␈α∩invitation␈α⊃to␈α∩visit␈α⊃the
␈↓ ↓H␈↓Computer␈α∃Science␈α∀Department␈α∃of␈α∀Stanford␈α∃University␈α∃as␈α∀a␈α∃Visiting␈α∀Scholar␈α∃for␈α∃one␈α∀year,
␈↓ ↓H␈↓beginning␈α
in␈α∞August␈α
of␈α
this␈α∞year.␈α
 Enclosed␈α
is␈α∞the␈α
DSP-66␈α
form␈α∞to␈α
obtain␈α
a␈α∞visa␈α
from␈α∞the␈α
U.S.
␈↓ ↓H␈↓Embassy␈α∪in␈α∪Peking.␈α∪ Also␈α∀enclosed␈α∪is␈α∪the␈α∪A≠davit␈α∪of␈α∀Support␈α∪from␈α∪your␈α∪sister␈α∀and␈α∪some
␈↓ ↓H␈↓information on Medical Insurance.

␈↓ ↓H␈↓Unfortunately,␈αthere␈αis␈αno␈αhousing␈αfor␈αvisitors␈αon␈αcampus.␈α However,␈αplease␈αdo␈αnot␈αworry,␈αwe␈αwill
␈↓ ↓H␈↓be␈α
able␈αto␈α
≡nd␈αa␈α
place␈α
for␈αyou␈α
to␈αstay␈α
for␈αa␈α
few␈α
days␈αuntil␈α
suitable␈αhousing␈α
can␈αbe␈α
found.␈α
 It␈αis
␈↓ ↓H␈↓fairly␈αeasy␈αto␈α≡nd␈αhousing␈αclose␈αto␈αcampus␈αin␈αAugust␈αas␈αStanford␈αstudents␈αdo␈αnot␈αreturn␈αto␈α
school
␈↓ ↓H␈↓until␈α
the␈α
end␈α
of␈α
September.␈α
 The␈α
AI␈α
Lab␈α
will␈α
be␈α
moving␈α
to␈α
a␈α
building␈α
on␈α
the␈α
Stanford␈αcampus␈α
on
␈↓ ↓H␈↓October 1st which will make it much easier for you in regards to transportation.

␈↓ ↓H␈↓I␈αhave␈αsent␈αa␈αcopy␈αof␈αyour␈αpapers␈αto␈α
Mr.␈αJohn␈αThompson␈αof␈αthe␈αU.S.␈αLiaison␈αO≠ce␈αat␈α
the␈αU.S.
␈↓ ↓H␈↓Embassy␈α
in␈α∞Peking␈α
to␈α∞help␈α
speed␈α∞up␈α
the␈α
processing␈α∞of␈α
your␈α∞visa.␈α
 If␈α∞you␈α
should␈α∞need␈α
anything
␈↓ ↓H␈↓else, please let me know.  We are looking forward with pleasure to your visit.

␈↓ ↓H␈↓I am sending you an open airline ticket under separate cover.


␈↓ ↓H␈↓Sincerely,



␈↓ ↓H␈↓John McCarthy
␈↓ ↓H␈↓Director
␈↓ ↓H␈↓Professor of Computer Science
␈↓ ↓H␈↓cc: Professor Knuth
␈↓ ↓H␈↓    Douglas Murray