Smithsonian Report. I960 Palmer 



PLATE 7 



IV-clinician pci Idrniiii'-.' hher-lcHL'th tests on prepared test specimens of cut tun lint usint; 

 the Suler-\\ ebb Dnplex Cotton Fiber Sorter. 'I'his instrument permits a slraliticat ion 

 of the man\" tibcr-lcnL'tli groups occurrint: in an\ sample of cotton anci the formation 

 of a cf)tton-fiber-lcn.L'th array from which the length distribution can iie accnrateh' 

 e\aluated tor the entire sample, and \arious statistical \alues calcid;tted for its central 

 tendencies and \'ariabilit\'. 



2. 'I'echnicians making hber-lengih tests on cotton lint using the Hertel Digital Fibros-'raph. 

 'I'his is a photoelectric instrument allowing a scanning of the combed and specially pre- 

 pared sample whereby various length statistics of the fiber length distribution can be 

 ev^aluatcd. 



