A Treatise on Meteorological Instruments - Negretti & Zambra Seven Day Razor Set This large wall barometer is

This large wall barometer is 65cms high and 50cms wide

The dome top of the case is mimicked within the scale plate by a separate domed piece of glass

if the Beagle had gone under a third time

The developments of Admiral Fitzroys meteorological work brought this branch of science to the public eye and instrument makers were keen to provide the public with instruments that would provide more succinct and accurate methods of weather prediction

but this seemingly simple conundrum must have been too enticing to pass up

A Treatise on Meteorological Instruments - Negretti & Zambra Seven Day Razor Set This large wall barometer isThis treatise on meteorological instruments was first published in 1864 by the partnership of Henry Negretti and Joseph Zambra, meteorological instrument makers to Queen Victoria, and describes the method of construction, scientific principles and practical uses of barometers, thermometers, hygrometers, rain gauges, anemometers, electrometers, ozonometers and other meteorological instruments. The instruments are fully described, with the help of