142 INSECT BEHAVIOR 



by instinct, insects will occasionally adopt means whereby their ob- 

 jects may be effected. And if it be true, as we now believe, that all 

 instincts arose through successive generations preserving habits which 

 happened to be of benefit, then insects must gain knowledge from ex- 

 perience, which would appear to be impossible were they not gifted 

 with a slight amount of intelligence. 



