Cent, while that by bisulphide of carbon 47 Iodide of ethyl. Benzol. Benzol. Amylene. Amylene. Sulphuric aether. Sulphuric aether. Sulphuric aether. Acetic aether. Acetic aether. Formic aether. Formic aether. Formic aether. Formic aether. Formic aether. Formic aether. Alcohol. Alcohol. Water. We here find the molecular motion in.