Vibration Magnetometer :-To compare the magnetic moments of magnets & to determine moments of inertia etc. Consists of a polished wooden box fitted with sliding glass door. The top of the case is slotted & carries a glass tube fitted with torsion head to support by means of a silk fibre, a brass stirrup to carry magnets etc. The base of box is fitted with a mirror strip, with a longitudinal index line. Internal dimensions of box 160 x 66 x 66 mm approx. Length of tube 140 mm approx. Stirrup 50 mm long & 45 mm high approx. Complete with one each 50 & 100 mm bar magnets & one each 50 & 100 mm brass bars.