Diethyl ether of vitriol" ("oleum dulce vitrioli")—the name reflects the fact that it is obtained by distilling a mixture of ethanol and sulfuric acid (then known as oil of vitriol)—and noted some of its medicinal properties. At about the same time, Paracelsus discovered ether's analgesic properties in chickens. The name "ether" was given to the substance in 1729 by August Sigmund Frobenius. Diethyl ether Diethyl ether, or simply ether, is an organic compound in the ether class with the formula , sometimes abbreviated as (see Pseudoelement symbols). It is a colorless, highly volatile flammable liquid. It is commonly used as a solvent
Today is Friday within his writing. In fact, "Today is Friday" was not the only story within "Men Without Women" to reference boxing, the story, Fifty Grand is explicitly about a boxer training for a prizefight. Hemingway's apparent obsession with boxing is documented in multiple archived letters and he is widely quoted as having said, "my writing is nothing, my boxing is everything" whilst being interviewed by Josephine Herbst. The way in which Hemingway appreciated boxing is made ever more vivid through the way he characterised Christ as a gallant boxer in "Today is Friday". Indeed, the play has been noted one of