88 Darwin, and after Darwin, 



ttitudinizings that it is scarcely possible to doubt their 

 bject is to incite the opposite sex. Here, for instance, 



FIG. iaa. Courtship of Spiders. A few examples of some of the 

 attitudes adopted by different species of males when approaching their 

 females. (After Peckham.) 



is a series of drawings illustrating the courtship of 

 spiders. I choose this case as an example, partly 



