Surveyor's Level by Joseph Jackson

1735-60

Spirit thermometer by Pastorelli

1849

'Standard Barometer' or storm glass

1900-1920

Strut thermometer by J. Hicks

1929

Apparatus to demonstrate the thermal expansion of liquids, mid 19th century.

1831-1870

Improved Patent Portable Theodolite

1818-1826

Circumferentor, British, 1792-1800

1792-1800

'Sitesquare' optical square, British, 1959

1959

Standard maximum thermometer by Negretti and Zambra

1852

Standard Rutherford minimum thermometer

1790 (designed)

Maximum and minimum thermometer by C.F.Casella

1908-1913

Six's thermometer, 1876.

1876

Rutherford minimum thermometer by L. Casella

Universal Equatorial Sundial.

Grass minimum thermometer by Calderara, 1928.

1928

Spirit thermometer by Newman

1850

Aeroplane thermometer, 1919.

1919

Strut psychrometer

1944

Rutherford maximum and minimum thermometer, 1794

1794

Clinometer with spirit level

Daniell hygrometer

1860-1880, 1812 (design)

Minimum thermometer by Negretti and Zambra

Six's thermometer, 1876.

1876

Gunner's quadrant with mahogany case

'Cole Pattern' sun compass with vertical gnomon on adjustable metal fixtures

1939-1945

Air barometer or "sympiesometer", 1858.

1858

Minimum thermometer with bifurcated bulb

1873

Transit theodolite, British, 1826-1850

1826-1850

One of a pair of prisms in frames

Daniell hygrometer

1860-1880, 1812 (design)