Robert Bate's hydrometer Pevensey bottom right The Middlesex Petition

bottom right The Middlesex Petition

The River Lea and Stratford Bridge with a covered cart crossing

England in 1842

England and West ham skipper Bobby Moore (right) was enjoying a pleasant reunion with Carlos Alberto

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

Robert Bate's hydrometer Pevensey bottom right The Middlesex PetitionA 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