XIV 



INTRODUCTION. 



reason, the subjects we take, as a general rule, 

 are of such an exceedingly restless character. 



The pictures 

 on the pre- 

 vious page 

 show the ad- 

 vantages of 

 the photogra- 

 phic method 

 of-ilhistration 

 wliere faitli- 

 lulness of de- 

 tail and form 

 are of the first 

 importance to 

 the student, 

 and incident- 

 ally prove 

 how rapidly 

 the world has 

 advanced during the last two hundred years 

 towards truth and accuracy. When one reads 

 a solemn declaration to the effect that the first 

 robin in the series was "exactly copied from 

 Nature," as recently as 1737, and remembers that 

 the second appeared in a work published less than 

 twenty years ago, one feels truly grateful to 

 modern science. 



That the camera is capable of catching the 



MISSEL THRUSH 

 CONTENTED. 



