70 TRICIIOLOGIA MAMMALIUM ; 



With 950 grains it stretched -|-{j of an inch, elasticity minus '* 

 " 1,000 " " f$ " " " is. 



" 1,050 " " " " " i 



" 1,100 " " 1$ " " " 



" " 1 " " " II 



" 1,200 " " 11 '< " .2;; 



" 1,250 " " A|- " " " 



" 1,300 " " *% ' " " |f 



" 1,350 " broke. 



The peculiarity of these hairs is, that they separately partake of the characters of the 

 three classes. The oval shape, the curled direction and central coloring matter, of the first 

 class ; the cylindrical shape, straight direction, and colored cortex, of the second class, 

 and the undulated direction, black and red mixture of colors and colored fibres, of the third 

 class. The very great discrepancy in their ductility, elasticity and tenacity is also very 

 striking, as will be seen by the two above tables. 



Of the Classification of the Lower Animals by their Pile. We have a considerable 

 amount of matter upon this subject, collected, but have not here room for its insertion. 

 (See titles " Button," and " Coloring Matter.") 



