THE INDIVIDUAL DIFFERENCES OBSEEV- 

 ABLE IN THE SAME SPECIES OF 

 ANIMALS. 



An unfortunate shipwrecked sailor cast on shore upon 

 the coast of Africa, and surrounded by a crowd of negroes, 

 would not be able to distinguish or see the slightest differ- 

 ence (except sex) among these naked black people ; they 

 would all appear to him alike, thick-lipped, woolly-headed, 

 and black — Sambo, Congo, and Jumbo " berry much alike, 

 specially Jumbo." It would not, however, be long, should 

 he remain among these people, before he would be able 

 to recognize the different individuals, and the marked 

 similarity that at first struck him would soon disappear, 

 and Sambo would appear totally distinct from Congo and 

 the rest, not only in his appearance, but in disposition, 

 manners, etc. Much in the same way, if we meet a flock 

 of sheep of any particular breed they appear as alike as 

 possible at first sight ; but upon careful examination they 

 will be found to present well-marked and endless differ- 

 ences, even to an ordinary observer ; but ask the shepherd 

 who has had the rearing and attending to the flock, he 

 knows every sheep, and can distinguish them perhaps as 

 readily as the huntsman can name every hound in his 

 pack. 



Now a pack of hounds to the stranger appears so much 

 of the same size, colour, and form, that persons un- 



202 



