It contained a reasonable amount of mathematics and natural philosophy (as physics was called at that time, and in fact it was still so named when I [EFR] studied natural philosophy in St Andrews in the 1960s).
Ito ay naglalaman ng makatwirang halaga ng matematika at pilosopiya ng kalikasan (tulad ng physics ay tinatawag sa oras na iyon, at sa katunayan, ito ay pinangalanang pa rin kaya kapag ako [EFR]-aral ng likas na pilosopiya sa St Andrews sa 1960s).