Small square glass bottle with a glass stopper that is covered with a piece of leather with string wrapped round. White powder inside. Label reads "Calamel". Second label reads "1-4 grains for a dose". Savory 1836, p. 17-18:
“Calomel. – This mercurial preparation is more extensively and more usefully employed than almost any other article of the Materia Medica. But its principal use is as a purge, conjoined with other aperients; and for this purpose it is administered in doses of from three to six grains, combined with, or followed by, cathartic extract, rhubarb, senna, or other laxatives. (…) In affections of the liver, in various glandular diseases, and in some cutaneous eruptions, calomel is celebrated as an alternative; and, combined with diuretics, it singularly contributes to their activity. (…)..,and in croup no remedy proves so decidedly useful as calomel, in these combinations, administered after bleeding and purging.(…)” Turnbull, 'The Naval Surgeon', 1806: John Clark, Observations on the diseases in long voyages to hot countries, and particularly on those which prevail in the East Indies,1773 was first to use calomel in dysentery.