Polar Equipment and Relics, Franklin relics

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Glass bottle

Polar Equipment and Relics

Object details:

Object ID AAA2224.21
Description Glass bottle labelled ‘Magnes. Carb’. Magnesium Carbonate (MgCO3). Savory in his 1836 'A companion to the Medicine Chest', p. 58, wrote: “Magnesia, Carbonate – Is employed like the preceding [Calcinated Magnesia], as an antacid, laxative, and lihontriptic; and, being nearly neutralised by carbonic acid gas, acts gently as an aperient when it does not meet with an acid on the stomach; and is therefore in many cases preferable to the calcinated. The dose is from half a drachm to two drachms.” Still used in the same way today, and it is a mineral supplement used to prevent and treat low amounts of magnesium in the blood. Magnesium is very important for the normal functioning of cells, nerves, muscles, bones, and the heart.
Date made

Artist/Maker Unknown
Credit National Maritime Museum, Greenwich, London
Materials Magnesium Carbonate; glass; metal
Measurements overall: 120 mm x 55 mm
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