Fox dip and intensity apparatus by George
circa 1840
Small frame containing two kinds of spider's thread
Kew pattern unifilar magnetometer
Pair of collimator magnets in wooden carier
Three inertia bars
Variation compass
Inertia ring used by Capt. Collinson, 1850-53
1850-1853
Two inertia rings
Two inertia rings, circa 1853
1853
Welsh's vertical force magnetograph by Adie, 1857
1857
Pair of 6-inch magnets and keepers, in mahogany box
Kew pattern unifilar magnetometer, incomplete
Compass with prismatic azimuth attachment
1801-1900
Kew pattern unifilar magnetometer
1883
Thirteen inertia bars
Variometer reflecting head in fitted case
Apparatus to illustrate the phenomena of terrestrial magnetism
Unifilar variation compass and magnetometer by Robinson
1830
Dip circle by Robinson, c 1830.
1830
Two Fox dip needles in carriers and ivory rubber
1851-1900
Azimuth compass in gimbals
Dip circle by Nairne and Blunt
1775
Gunmetal scale
1883
Dip circle and magnetometer by Brunner
1884
Dip circle by Robinson, c.1830
1830
Dip-needle, demonstration model
Vertical magnetometer by Oertling, c. 1930
1930
Compass for deviation tests, circa 1850
1850
Dip circle by Robinson, c. 1830
1830
Cabinet of magnetic apparatus
1801-1850
Kelvin's Vertical Force Magnetometer, by James White, 1870-1900
1870-1900
Pair of collimator magnets, ex Kew Observatory
Dip needle
Magnet bar
Pair of 12-inch magnets and keepers, in box
Inertia bar for use with unifilar magnetometer
Dip circle by Robinson & Barrow, London, c.1840
1842-1845
Sixteen inertia rings
Six inertia bars
Porter's magnetic sundial
Inertia ring
Magnetic model showing changes at Philadephia
Two dip needles used by Sir J.C. Ross, c.1840
1840
Variation Compass and magnetometer, 1837-1843
1837-1843
Variation compass, for observations of the Aurora, 19th century
1801-1900
Three photographic plates and one plate carrier
1850
Variation compass by Adams, c.1750
1750
Register of magnetic disturbance at Toronto 30th Nov. 1849 and description of magnetometers
Thalen-Tiberg magnetometer, 1880 type, with Dahlblom sine arm, 1928, by Berg
1928
Unifilar variation compass and magnetometer
1801-1900