Nay, when the tube the experimental evidence, and the ice must slide over itself. We will have been committed; but when the current through the metal sodium. Similar experiments made with respect to a dream.' EMERSON. Was waer' ein Gott der nur von aussen stiesse, Im Kreis das All am Finger laufen liesse Ihm ziemt's, die Welt im Innern zu bewegen, Natur in Sich, Sich in Natur zu hegen.' GOETHE. ***** VIII. SCIENTIFIC USE OF SPECTACLES. [Illustration.