WHAT IS DARWINISM? 127 



metrical whole. No amount of disconnected 

 data can constitute a science. Those data must 

 be systematized in their relation to each other 

 and to other things. In the second place, the 

 word is becoming more and more restricted to 

 the knowledge of a particular class of facts, and 

 of their relations, namely, the facts of nature 

 or of the external .world. This usage is not 

 universal, nor is it fixed. In Germany, espec- 

 ially, the word Wissenschaft is used of all kinds 

 of ordered knowledge, whether transcendental 

 or empirical. So we are accustomed to speak 

 of mental, moral, social, as well as of natural 

 science. Nevertheless, the more restricted use 

 of the word is very common and very influ- 

 ential. It is important that this fact should 

 be recognized. In common usage, a scientific 

 man is distinguished specially from a metaphy- 

 sician. The one investigates the phenomena 

 of matter, the other studies the phenomena of 

 mind, according to the old distinction between 

 physics and metaphysics. Science, therefore, 

 is the ordered knowledge of the phenomena 

 which we recognize through the senses. A 

 scientific fact is a fact perceived by the senses. 

 Scientific evidence is evidence addressed to the 

 senses. At one of the meetings of the Victoria 



