;6 HOW NAtURfi STODV SHOtJLt) BE TAtJGHT 



He occasionally views nature informally, as in 

 his famous article on nature study from which the 

 foregoing is quoted. 



Henry D. Thoreau was the first and is generally 

 accredited to be the greatest of American natural- 

 ists. He occasionally looks at nature from the 

 scientific point of view, as is evinced by his 

 assistance to Agassiz. Thoreau is a naturalist ; 

 Professor Bailey a scientist. These are two dif- 

 ferent points of view, although there is no opposi- 

 tion nor hard and fast lines. The most successful 

 scientist must have much of the naturalist (" Na- 

 ture Study") in him, and the naturalist's love 

 leads him to more and more of scientific knowl- 

 edge. It is not a question as to whether one has 

 a naturalist's love, and his ability to see things, or 

 whether he has a scientist's knowledge. Each 

 man must have both qualities. The question is, 

 of which quality has he the most? and the 

 answer decides whether he is a scientist or a 

 naturalist. I take these two men as typical of the 

 two classes, notwithstanding the fact that each 

 has much of the spirit of the other. Both Bailey 

 and Thoreau have recognized that there is a dif- 

 ference between nature study and science. Here 

 is Bailey's way of making the distinction : 



