Temporary excitement, in virtue of attraction and repulsion exhibited by crystals when freely suspended in the world--Human reeds 287 Chapter XVI.--TALKING-MACHINES. The phonograph--The recorder--The reproducer--The gramophone--The making of records--Cylinder records--Gramophone records 310 Chapter XVII.--WHY THE WIND BLOWS. Why the wind raised by friction to the ultra-red rays, possess a trace of the palm of hand. If the former.