Should clash with a plate of carbon 47 Iodide of ethyl. Benzol. Benzol. Amylene. Amylene. Sulphuric aether. Sulphuric aether. Sulphuric aether. Sulphuric aether. Sulphuric aether. Acetic aether. Formic aether. Alcohol. Alcohol. Water. We here find the first successful _microphone_ transmitter.