A fine and attractive early wheel barometer by James Gatty, 132 Holborn, London. Swan-neck pediment with brass finial, hydrometer dial, long mercury thermometer, 10” dial
An unusual Italian made stick barometer by Ciresa of Milan. Ebonised flat wooden case, with gilt mounts and a gilt sliding ‘cherub’ pointer. The original
A good, early wheel barometer. The elegantly simple engraving on the 8” dial and the long spirit thermometer set off by the lovely dark patina
A good mahogany wheel barometer by G.Broggi. The case has line stringing to the edges & is inlaid with floral roundels & Conch shells. The
A good Mahogany wheel barometer with inlaid foliage marquetry panels & fine stringing. The architectural pediment with brass urn finial above a spirit thermometer on
A very fine mahogany cased stick barometer with scroll pediment by Gilbert and Co. from London. Locking glazed door protecting silvered brass scales.
A very fine, early 19th century mahogany Stick Barometer. Silvered brass register scales signed ‘Thomas Knight, Fecit’ with Fahrenheit thermometer and manually operated vernier slide,
A superb quality and rare 12” wheel barometer with finely engraved, silvered dial signed W.Harris & Co. 50 Holborn, London. Mercury thermometer with curved glass,
A very pretty, small French aneroid barometer in its original gilt brass, asymmetric, floral case. 4” enamel dial signed Toricelli A’ Paris. Blued steel moon-poise
A superb, mahogany bow front, stick barometer by Alexander Adie of Edinburgh. A very slim and elegant case with fluted pediment and cistern cover, and
A barometer is an instrument used to measure atmospheric pressure. Around the middle of the 17th century experiments by Galileo and Torricelli found that a tube of mercury with one end plugged and turned upside down, the open end of the tube immersed in a container of more mercury, remained full to the height of around 29” and that the varying atmospheric pressure would raise or lower this column of mercury. A scale could be applied to this tube of mercury, and thus it was possible to see variations in the atmospheric pressure, in inches mercury, which aided weather prediction.
Read more about Barometers and Barographs Weather Forecasting and Recording here.