622 



INDEX. 



DIS 



Discovery by inductive process, 



460 

 investigation of exceptional 



cases, 498-500 

 investigating unexplained 



phenomena, 495-498 

 classification, 207- 



208, 577 



by means of converse experi- 

 ments, 523, 548-549 



of hypotheses, 509 



of ' homologous series,' 26 



of instruments of great 



power, 561 



improved methods of in- 

 tellectual operation, 606-607 



of measurements, 391 



of the method of curves, 



610, 611 



of least squares, 611 



of means, 611 



of residues, 611 



of new instruments, 



471 



of modes of observation, 



573 



of observations, 563 



of more intelligent and 



acute observation, 574-575 



of additional observations 



by known methods, 565-572 



of periodic functions,' 26 



of more refined methods 



of working, 213 



of repetition of experi- 

 ments, 543-544 



simple comparison of facts 



or phenomena, 577-579 



searching for impossible 

 things, 515 



for one thing and finding 



another, 515-519 



synthesis, 217 



subjecting series of forces 



or substances to new conditions, 

 549-550 



using known instruments or 



forces in a new way, 546-548 



the use of improved instru- 

 ments, 470, 486 



DIU 



Discovery by the use of more 

 powerful instruments, 560-562 



of causes by the method of 

 averages, 434-435 



coincidences, 445-447 



conditions of scientific, 463 

 which determine the nature 



of a, 456 



contrasted with barren reason- 

 ing, 3 



dependence of upon art, 187- 

 188 



of exceptional instances, 386 



' fundamental laws of,' 458 



future, vastness of, 7, 22, 26-28, 

 394, 469, 563 



in the future, probable means 

 of effecting, 574 



Glauber's rule of, 501 



both inductive and deductive, 

 187 



inductive and deductive modes 

 of, 461, 524-525 



invention a condition of, 471 



instances of simultaneous, 578 



limits of, 2, 15, 18, 21, 462- 

 464 



man's power of, 169, 463 



merit of, to whom due, 13 



methods of, 9, 464 



methods of, are usually con- 

 crete, 457 



modes of, difficulty of classi- 

 fying, 455 



personal qualifications for, 241 



of residual phenomena, instance 

 of, 433 



special modes of, 455-456 



usually a concrete process, 576 



instance of the value of logic 

 in, 355-358 



Discussion, its influence on re- 

 search, 303 



Dissipation of energy, theory of, 

 162-163 



Distribution of electricity on a 

 spheroid, solution of the pro- 

 blem of, 606 



Diurnal magnetic variation, dis- 

 covery of, 577 



