Last week was flood season for scientific conventions, conferences, symposia, and the professors attended them well.
AT NASHVILLE, TENN.
Greatest meeting was that of the American Association for the Advancement of Science at Nashville, Tenn. Thither journeyed some 3,000 scientists. They listened to nimble discussions on mathematics, physics, meteorology, zoology, geography, botony, entomology.
Physical Theories. "A physical theory does not represent what we might call a real truth. A physical theory is a collection of fundamental hypotheses and general laws, which may be used to deduce particular laws that can be applied to concrete...