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