He was invoked by that name among the Romans whenever the earth was parched by continual heat. […] If at any time it went out, either from neglect or by accident, it was restored by fire obtained by rubbing pieces of wood together, or by kindling them with a burning glass. […] This wand was surmounted by wings. […] Every sacrifice was accompanied by salt, and also by a libation, usually of wine. […] They were all persecuted by Hera.