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$ 62. In the second class the proposed additions to the data 



consist of relations 130 



63. The third class contains the typical hypotheses of Science, 

 such as those which have been considered in detail in this 

 essay ... ' 130 



8 64. Hypotheses of the first and second classes undoubtedly 

 claim validity, since they claim recognition as verifiable 

 Objective facts. The hypotheses of the third class are not 

 verifiable and ultimately disappear 131 



$ 65. Opposed to the " realistic " view of Science are the various 

 " descriptive " views which are related to Humanism. 

 Foincare admits the Objectivity of relations alone ... 133 



66. Le Roy appears to deny even this amount of Objectivity. 

 The whole body of scientific facts and laws has pragmatic 

 value only 134 



67. Mach's well-known principle of " economy " claims to 

 explain the genesis of much that we have claimed as 

 primary Objective fact. He regards Science as a process 

 which is continuous with the process by which the "plain 

 man's : ' world was generated. In this he is in agreement 

 with the Humanists 135 



68. On the contrary, we must maintain that there is a complete 

 break between judgments which deal with primary facts 

 alone and " scientific " judgments 139 



$ 69. A summary of the whole work. The Aim of Science is to 

 render the Objective intelligible : its Achievements are 

 the further Objective facts and determinations which its 

 hypotheses bring to light ... 142 



