TICKER 
TAKES 
from A.P. and U.P.I. 
OFFICE OF INFORMATION ROOM 307 BUILDING 1 EXTENSION 65787 
nqos 
B 
NOBEL MEDICINE 
STOCKHOLM, SWEDEN (AP) — THE 1973 NOBEL PRIZE IN MEDICINE WAS 
AWARDED JOINTLY TODAY TO TWO AMERICANS AND A SWISS RESEARCHER FOR 
ENZYME GENETICAL RESEARCH. THE THREE ARE SWISS MICROBILOGY PROFESSOR 
WERNER ARBER OF BASEL AND DANIEL NATHANS AND HAMILTON 0. SMITH, WHO 
BOTH WORK AT JOHNS HOPKINS UNIVERSITY IN BALTIMORE. 
THE NOBEL COMMITTEE OF THE KAROLINSKA INSTITUTE OF MEDICINE CITED 
THEM FOR THE DISCOVERY OF RESTRICTION ENZYMES AND THEIR APPLICATION 
TO PROBLEMS OF MOLECULAR GENETICS. 
RESTRICTION ENZYMES, DISCOVERED BY THE 49 -YEAR-OLD ARBER, PROVIDE 
THE "CHEMICAL KNIVES" TO CUT GENES INTO DEFINED FRAGMENTS. 
SMITH, 47, VERIFIED ARBER f S HYPOTHESIS AND NATHANS, 49, PIONEERED 
THE APPLICATION OF RESTRICTION ENZYMES TO GENETICS. 
THEY WILL SHARE A PRIZE OF $155, 000. 
AP-WX-1012 09 03STT 
[Reprinted with permission 
of the Associated Press.] 
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