x'ii CONTENTS. 



CHAPTER XXIV. 



KMPIUIOAL KNOWLEDGE, EXPLANATION AND rUEDICTION. 

 SI'XTION PACK 



1. Empivical Knowledge, Explanation and Prediction .... 525 



2. Empirical Knowledge 526 



3. Accidental Discovery 529 



4. Empirical Observations subsequent!}' Explained 532 



5. Overlooked Pesults of Tlieory 534 



6. Predicted Discoveries 53G 



7. Predictions in the Science of Light 538 



8. Predictions from the Theory of Undulations 54U 



9. Pi'ediction in other Sciences 542 



10. Prediction by Inversion of Cause and Eflect 545 



11. Facts known only by Theory 547 



CHAPTEPt XXV. 



ACCOIIDANCE OF QL'ANTITATIVE THEOKIKS. 



1. Accordance of Quantitative Theories 551 



2. Empirical Measurements 552 



3. Quantities indicated by Theory, but Empirically Measured . . 553 



4. Ex^daiued Results of Measurement 554 



5. Quantities determined by Theory and verified by Measurement 5.o5 



6. Quantities determined by Theory and not verified 556 



7. DisconJance of Theory and Experiment 558 



8. Accordance of ]\Ieasurements of Astronomical Distances . . 560 



9. Selection of the best Mode of Measurement 563 



10. Agreement of Distinct Modes of Measurement 664 



11. Residual Phenomena 569 



CHAPTER XXVI. 



CIlAKACTEll OF TUF. EXPEEIMENTALIST. 



1. Chai'acter of the Experimentalist 574 



2. Error of tlie Baconian Meihod 676 



3. Ereedom of Theorising 577 



4. The Newtonian Method, the True Organum 681 



5 Candour and Couratre of the Philosophic Mind 586 



6. The Philosopliic Character of Faraday 687 



7. Reservation of Judgment 692 



