Revised edition. A natural philosophy: embracing the most recent discoveries in the various branches of physics, and exhibiting the application of scientific principles in every-day life. Adapted to use with or without apparatus, and accompanied with full descriptions of experiments, practical exercises, and numerous illustrations / by G. P. Quackenbos, LL.D., principal of "The Collegiate School", N. Y.; author of "First lessons in composition", advanced course of composition and retoric," "illustrated school history of the United States", etc. - Quackenbos, George Payn, 1826-1881