Eddington's principle in the philosophy of science

A. D. RITCHIE absolute constant amount of matter ARTHUR STANLEY EDDINGTON called circumference conduction-current consists of numbers constant of gravitation constants of nature cosmical number cosmologies cosmos cross-ratios derived from observation diameter Dirac displacement-current E-numbers Eddington's Principle electric and magnetic electromagnetic theory electron energy equations Euclidean geometry existence experimental physics fine-structure constant formula Huygens increasing inference instant Jordan known L. P. JACKS late Professor E. A. lecture Lectureship magnetic field mass material universe mathematical law Maxwell Maxwell's measurement mechanical momentum metrical geometry motion MYSTIC BY L. P. numbers found numbers that occur objection to Eddington's observational evidence order io39 order io78 PHILOSOPHY OF SCIENCE physical quantities physicists postulate of impotence present a number Process and Reality proton Pure Mathematics pure numbers purely intellectual qualitative assertions R. A. FISHER ratio refraction regard retical physics science of optics Sir Arthur Eddington tensors theo theoretical physics tion velocity of light Whitehead