Variation Compass and magnetometer, 1837-1843
1837-1843
Dip circle by Robinson, c 1830.
1830
Porter's magnetic sundial
Kelvin's Vertical Force Magnetometer, by James White, 1870-1900
1870-1900
Fox dip and intensity apparatus by George
circa 1840
Kew pattern unifilar magnetometer
1883
Kew pattern unifilar magnetometer
Apparatus to illustrate the phenomena of terrestrial magnetism
Unifilar variation compass and magnetometer by Robinson
1830
Dip-needle, demonstration model
Kew pattern unifilar magnetometer, incomplete
Gunmetal scale
1883
Dip circle by Nairne and Blunt
1775
Dip circle and magnetometer by Brunner
1884
Welsh's vertical force magnetograph by Adie, 1857
1857
Vertical magnetometer by Oertling, c. 1930
1930
Variometer reflecting head in fitted case
Small frame containing two kinds of spider's thread
Compass with prismatic azimuth attachment
1801-1900
Pair of collimator magnets, ex Kew Observatory
Dip circle by Robinson, c. 1830
1830
Pair of 6-inch magnets and keepers, in mahogany box
Azimuth compass in gimbals
Three photographic plates and one plate carrier
1850
Pair of 12-inch magnets and keepers, in box
Variation compass
Thirteen inertia bars
Compass for deviation tests, circa 1850
1850
Magnetic model showing changes at Philadephia
Variation compass, for observations of the Aurora, 19th century
1801-1900
Inertia ring used by Capt. Collinson, 1850-53
1850-1853
Two inertia rings
Inertia bar for use with unifilar magnetometer
Sixteen inertia rings
Inertia ring
Two Fox dip needles in carriers and ivory rubber
1851-1900
Pair of collimator magnets in wooden carier
Magnet bar
Six inertia bars
Dip needle
Cabinet of magnetic apparatus
1801-1850
Three inertia bars
Two inertia rings, circa 1853
1853
Two dip needles used by Sir J.C. Ross, c.1840
1840
Dip circle by Robinson, c.1830
1830
Dip circle by Robinson & Barrow, London, c.1840
1842-1845
Variation compass by Adams, c.1750
1750
Thalen-Tiberg magnetometer, 1880 type, with Dahlblom sine arm, 1928, by Berg
1928
Horizontal magnetic field balance with tripod and box
1924
Unifilar Magnetometer, Kew Pattern, 1851-1859, on table top stand, with accessories
1851-1859