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 Yesterday Today Is Yesterday Today Is Yesterday is a 2002 compilation album by English folk/rock singer-songwriter Roy Harper. Amongst its 17 tracks are six unreleased and eight rare songs. All the tracks were recorded between 1964 and 1969. Tracks 1–9 date from 1964–1965 and were recorded on an old mono Ferrograph quarter-inch Reel-to-reel audio tape deck. These tracks formed a demo tape that landed Harper his first record contract. Track 10 is a re-recording of a part of that demo tape and became the B-side of Harper's first single. Tracks 11 and 13 became Harper's second single, while track 12 was