316 



The Philippine Journal of Science 



Blonsation (read as percentage or in millimeters). 



4 8 12 16 20 24 







] 



B 























8400 





1 



















































7800 























































7200 





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i 

























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c 6000 



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 g 



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11 



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1 

















3 



S 5400 



9 



3 



il 























! 

























ms per aq 



1 



s 1 

















































2 



5 mo 



a 



















































I 



" 3600 



-S 



i 





















































3W 





















































2400 























































1800 























































1200 



1 



T ' 



























1 

 j 















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■^ 



^ 



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yO 



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FlQ. 2. Comparative stress-deformation graphs of abaca and coir filaments, showing th» 

 relative elasticity and resilience. 



