Figure 1-6 



Scientific Literature' in Selected Fields' as a Percent of Total Literature, by Country, 1965-73 



CHEMISTRY 



PHYSICS 



(Percent of Total) 

 60 



50 



40 



30 



US.S.R. 



U.S. 



Other ,,.»* 



miiiiiiiiii**!*"""""""""'**'*'*"*"*"' 



W. Germany 

 'ttttttttt' 



(Percent of Total) 

 60 



50 - 



40 



20 



■^ Japan 



UK 



J L 



other 

 ■ III! iiiiiiiiiiiiiiii*" U.S.b.R. 



U.K. 



W. Germany 



___^_^________,;i,*i;4*« 



_L 



Japan 



1965 



■67 



■69 



■71 72 ^73 1965 



■67 69 



PSYCHOLOGY 



■71 ^72 '73 



(Percent ot Total) 



ENGINEERING 



(Percent of Total) 

 60 



50 



20 



U.S. 



other 



IIIIIIIIIIIIIIIIIIIIIIIIIIIIMIIIIII>*II>>II*'*'"** 



..«' 



^% 



10 ^' 



U.S.S.R. 

 ■ ^ ■■ I 

 ' U.K.' ' Japan France 



U.S. 



40 - 



30 



; 10 



W Germany ....••V«»«*\***"** 



T 



other ,1111111"" 



11,1 M........ ""••" 



U.K. 



I •••••• ■ 



W. Germany 



.1 r 4 1....' 



1965 



71 '72 '73 1965 



■71 72 '73 



J Includes article!, letters anil notes from the 492 scientific journals winch 



were most tieavily cited in 1965. 



= The social sciences are excluded because comparable data were not 



available. 



SOURCE: Computer Horizons. Inc. 



10 



