A wooden ruler with raised metal dots marking the spacings on the ruler. Made prior to 1971, when metric measurements were introduced, this 18-inch ruler is a demonstration of how easily a simple visual measuring tool could be adapted for varying degrees of sight by the use of tactile markings. 1 wooden ruler with metal pins as measurement pointsassistive devices, royal national institute for the blind

Hand-made manometer is mounted on a flat, rectangular chrome platform. It comprises three valves labelled A, B and C. Valve C is connected to a glass measuring cylinder via a curved metal pipe. Item also includes a small spanner and brown plastic mock leather case with metal clasp, hinges and studs.Engraved into the floor of the device are the instructions on what valves to open and shut for 'infusion, fill and read'. Engraved on spanner: Geoffrey Kaye Engraved on clasp of case: Kaye BJ.2749anaesthesia, dr geoffrey kaye, manometer, venous pressure manometer, measurement, spanner, chrome, invention, manufacture

Methoxyflurane Hydrogenated ether (ether with one or more hydrogen atoms replaced with a halogen atom). It is a powerful analgesic although is also a respiratory depressant. The use of Penthrane foreshadowed the patient controlled analgesia devices.Empty brown glass bottle with green manufacturer's label, with white writing and a white plastic lid. Green liquid measures have been printed on the side of the bottle.White sticker stuck to manufacturer's label: Expiration Date / Feb. 1, 1976 / Lot 854-1663analgesia, hydrogenated ether, self administration, methoxyflurane, abbott laboratories, penthrane

Between 1867 and 1920, anaesthesia for dental operations was often maintained by blowing the vapour of ether or chloroform into the patients' oral or nasal pharynx. Junker's inhalers are a "blow over" device used with a hand-held bellows to bubble air through liquid chloroform and to the patient. It was initially intended for use with bichloride of methylene, a mixture of chloroform and methyl alcohol. Ferdinand Ethelbert Junker introduced his inhaler in 1867 as appointed physician to Samaritan Free Hospital for Women (although it didn't have that name until c.1904). Glass jar with liquid measure markers etched onto. The jar has a metal lid, with a metal tube descending into the jar. Two metal tubes are protuding out of the top of the lid, and each has a small section of rubber tubing attached. There is also a metal hook, used to attached the jar to the physicians (anaesthetist's) lapel.Stamped into frame of metal lid: LONDON MADEjunker, blow over, chloroform, samaritan free hospital for women

Used to prepare fuel samples to measure their moisture content. Representative samples of fine fuel such as bark, leaves, twigs etc were minced first through a course mincing plate, then a fine plate and the moisture content measured with a Speedy moisture meter or other device. The availability of fuel to burn depends largely on its moisture content. When it exceeds 20-25% not much will burn, whereas 12-15% is generally ideal for fuel reduction burning, but if the moisture content drops as low as 7-10% virtually everything will ignite, and fire behaviour becomes extreme. During the afternoon of the Ash Wednesday bushfires on 16 February 1983 fuel moisture contents were recorded at Stawell as low as 2.7%. Fine fuels like leaves and bark can rapidly absorb moisture after a shower of rain, or from the air when the Relative Humidity (RH) is high, and the temperature is low. Conversely, they can also dry out very quickly. So even though the overall fuel quantity in the forest doesn’t change, the fine fuel availability can increase rapidly from zero after rain to many tonnes per hectare as the fuel dries out. This can happen over a few hours on hot and windy days. Heavy fuels like logs on the ground take longer to dry out. Spong No 10 food mincerforests commission victoria (fcv), bushfire, forest measurement