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Fig. 4c. Sample print-out of IBM species-name cards. This is an old listing with occasional 

 errors, and arranged alphabetically. The cards are now arranged systematically. 



card permitted the printing of the correct scientific name of all species 

 dealt with in any program analyzing this data. All of these data were 

 entered on IBM cards in approximately two months with the help of 

 students. One set of cards, which can be quickly duplicated at virtually no 

 cost, is kept at Scripps Institution and may be obtained on request. A 

 second set of cards was taken to Denmark, where it could be used for 

 additional analysis in Copenhagen. 



