Chap. XIV. 
GRADATION OF CHARACTERS. 
15a 
object, I have myself but little doubt.” If this be 
admitted, we can perceive that the males which were 
decked in the most elegant and novel manner would 
have gained an advantage, not in the ordinary struggle 
for life, but in rivalry with other males, and would 
consequently have left a larger number of offspring to 
inherit their newly-acquired beauty. 
‘ Introduction to the Trochilidse/ 1861, |). 110. 
