CONTENTS. 



CHAPTER XII. Of the Explanation of Laws of Nature. 



PAGE 



1. Explanation defined 518 



2. First mode of explanation, by resolving the law of a com 



plex effect into the laws of the concurrent causes and 



the fact of their coexistence . . . . 518 



3. Second mode ; by the detection of an intermediate link in 



the sequence . 



4. Laws are always resolved into laws more general than 



themselves . ... 520 



5. Third mode ; the subsumption of less general laws under 



a more general one . &quot;** 



6. What the explanation of a law of nature amounts to . 526 



CHAPTER XIII. Miscellaneous Examples of the Explanation of 

 Laws of Nature. 



1. The general theories of the sciences . .529 



2. Examples from chemical speculations 



3. Example from Dr. Brown- Sequard s researches on the 



nervous system . . 



4. Examples of following newly-discovered laws into their 



complex manifestations . 



5. Examples of empirical generalizations, afterwards con 



firmed and explained deductively 



6. Example from mental science . . . 538 

 7. Tendency of all the sciences to become deductive . 539 



