CHAPTER XXV.

ACCORDANCE OF QUANTITATIVE THEORIES.

1. Accordance of Quantitative Theories 551

2. Empirical Measurements 552

3. Quantities indicated by Theory, but Empirically Measured 553

4. Explained Results of Measurement 554

5. Quantities determined by Theory and verified by Measurement 555

6. Quantities determined by Theory and not verified 556

7. Discordance of Theory and Experiment 558

8. Accordance of Measurements of Astronomical Distances 560

9. Selection of the best Mode of Measurement 563

10. Agreement of Distinct Modes of Measurement 564

11. Residual Phenomena 569