History of Natural Philosophy from the Earliest Periods to the Present Time

action actual afford analogy appear application Aristotle ascer ascertained astronomy attraction become bodies branch of science cause character chemical chemical elements chemistry circumstances colours combinations conclusions consequences consider consideration crystallized crystallography deductive reasoning degree determination direct discovery distinct double refraction effect elastic electricity enabled enquiry exact example existence experience extent facts fluid force Galileo heat Hipparchus important impression induction instance kind knowledge known laws of nature least less light liquids magnetism material mathematical matter means measure ment mind mineralogy motion mutual natural philosophy Newton objects observation once optical particles particular peculiar perceive pheno phenomena phenomenon philosopher physical planets present principles produced proportion quantity racters radiation reasoning refraction regarded relations remarkable repulsive researches rience scurvy sense sidered solid stances substances succession surface tartaric acid theory thing tion tricity vera causa verification Voltaic pile weight whole