two glass bulbs, one clear, one dark terminate a vertical U tube. Ink in the tube moves in response to the absorption of heat on the darker bulb. The U tube is mounted on a circular wooden base
one rectangular board is joined to a smaller rectangular board by a rubber belt. The smaller board has a long sharpened steel rod attached and a cup hook
tin cylindrical float weighted by lead suspended in a tin cone. A rod protrudes from the top, terminating in a circular tray containing a red residue. Possibly an early hydrometer
plastic base with 4 brass terminals in a line. Each terminal is high up and has a large brass arm attached. One arm has a Morse code style tapper at the end and is poised over a plastic stand. Stamped in the corner of the base is "Univ. Abdn., Nat.…
a metal pedestal on a circular base with three mounting holes. The pedestal has a clamped attachment with an adjustable horizontal arm moved by a knurled thumbwheel. Specialised laboratory equipment
Glass density bottle; etched onto bottle '1000 Grains, 60 F'; in custom-made black-painted tin; packed in cotton wool; adjustable brass weight with lead shot in lid
