Laudanum his "archanum" or "laudanum", may or may not have contained opium. Paracelsus' laudanum was strikingly different from the standard laudanum of the 17th century and beyond, containing crushed pearls, musk, amber, and other substances. One researcher has documented that "Laudanum, as listed in the "London Pharmacopoeia" (1618), was a pill made from opium, saffron, castor, ambergris, musk and nutmeg". Laudanum remained largely unknown until the 1660s when English physician Thomas Sydenham (1624–1689) compounded a proprietary opium tincture that he also named laudanum, although it differed substantially from the laudanum of Paracelsus. In 1676 Sydenham published a seminal work, "Medical Observations
An Old Master bullocks bent to their yoke, and lifted the waggon from the gluepot. He was 'An Old Master'." A reviewer in "The Telegraph" (Brisbane) noted: " Mr. Dennis's work is not confined to the rhyming in slang, which were the sole attraction of some of his earlier and lucrative efforts. "An Old Master," with which the volume opens, stands out as one of Mr. Dennis's best." An Old Master "An Old Master" is a poem by Australian poet C. J. Dennis. It was first published in "The Bulletin" magazine on 4 August 1910, and later in the poet's poetry collection "Backblock