Robert Bate's hydrometer Pevensey Above is a description and

Above is a description and to the sides are lists of Nelson's victories and rewards

As the final

bottom right The Middlesex Petition

The material they got on why the Needle was discovered was put in a 30 minute radio show

On each side are images of the Trajan and Naval Columns

Robert Bate's hydrometer Pevensey Above is a description andA hydrometer with hinged wooden case manufactured by Robert Bate. Hydrometers are used to measure the density of liquids. The weighted end is placed into a liquid and the hydrometer sinks to a certain level. The specific gravity can then be read from the liquid level on the vertical scale. ca. 1836