In 1913, Mark Cowley Lidwill designed a machine for the purpose of mechanical or insufflation anaesthesia. The Lidwill machine was a portable machine weighing 7kg that could easily be packed into two small bags. The machine involved compressed air being delivered to an ether vaporiser. An ether/air control device allowed varying concentrations of ether to be delivered. The ether vaporiser could be immersed in hot water to prevent cooling and the ether temperature was measured. From the vaporiser, the ether/air mixture went through a trap bottle, then to a crude mercury blow-off valve and subsequently to the patient.Large leather suitcase style bag divided into two levels containing and insufflation anaesthesia machine.insufflation, mark cowley lidwill, thoracic surgery, positive pressure

Water proof raincoat issued to all soldiers in pouch. Part of the collection of "John Young". Refer Cat No. 1181.3 for service details.Black and green camouflage, water proof raincoat jammed into a small similar colour bag. Bag is actually attached to coat and coat is then able to be folded and squashed into the pocket and buttoned up.Inside marked "M-Class 8415 66-021-5442". with place for Army No. and name.john young collection, equipment, raincoat for tropics

Sir Frederick William Hewitt (1857-1916) wrote one of the earliest comprehensive textbooks on anaesthesia, and designed several pieces of anaesthetic equipment. In 1901, he described his wide-bore ether inhaler, a modification of the Clover Ether Inhaler. Unlike the Clover, it can be refilled with ether while still in use, and the mask is screwed into place so that it "cannot be unexpectedly detached." This version is a modified Hewitt's Inhaler which has a narrower 'ways' than the original Hewitt's, and no water compartment. Additionally, one side of the bowl is made of glass which enabled the person administering anaesthesia to see the level remaining in the bowl. Bowl shaped inhaler with a glass bowl base and metal dome top with a connector which appears to be for a rebreather bag. There is a metal switch at the base of the glass bowl to alter or regulate the flow.Stamped into central tube: COXETER LONDON Stamped into side of metal dome: 6460hewitt, wide-bore, clover, ether, anaesthesia, anesthesiology, anaesthesiology

Khaki Canvas Bag designed for First Aid Kit. Contains 25 items including 2 x tweezers, 1 x eye bath, 1 x metal syringe, 1 x bottle gauze strip, 1 x snaake bite kit, 1 x pocahontas inhaler, 1 x water sterilizing kit, 1 x cat gut in glass tube, 1 x blade in container, 1 x splint set, 1 x first field dressing 1939 Smith and Nephew, 4 x large field dressingss, 2 x splint holders ?, 1 x First Aid book, 1 x Sanax First Aid card.Receipt from Red Cross Victorian Division South Melbourne Branch dated 14th April 1942.

For NBC Warfare.1. Mask - Gas. Full face mask that looks like silicone rubber, black colour. There are two plastic eye pieces and the lower front has a circular exhaust port. Also on this port is a small pipe that can be connected to a water vessel. On the left side is a large inlet filter. 2. Bag - canvas. The bag is a drab olive colour with a nylon shoulder strap. On the back are a couple of mount straps. One side has a small pocket with a cord. The other side has a pocket with a "lid", held shut with Velcro and a press stud. Inside the bag are numerous mounting straps. there is also a small pocket sewn against the front section. 3. Glove - neoprene black - left glove only.Written on top of lid is :- “TURNER R (?) L63792”nbc warfare, equipment, gas mask, canvas bag