Originally these mantles where produced to be used in gas street lights in Europe and North America cities.There use started in 1891. These mantles were used before electrical power street lighting was installed. They have been used ever since until safety concerns regarding radiation from their thorium infused particles made alternate mobile lamps more attractive. The age of open flame recreational lighting is fast coming to a close. The greater use of battery and generator powered lighting(ease of operation) has brought the costing of these alternative lighting to an acceptable level. The age of miniaturisation and volatility of the open flame has seen a greater swing to smaller and more stable lighting. These incandescent gas mantles were initially used in the Coleman White Gas LanternsThe Kiewa Valley, with its closeness to the Victorian Alps, allows greater opportunity for the "happy" campers to enjoy the outdoors. The lighting provided by the incandescent gas lamps allow the adventurer at heart to enjoy an alternative lifestyle and still having the comforts of "home" at their finger tips. The numerous camping facilities in the Kiewa Valley and the upper alpine region is testament that those living in the cities need a break from the day to day grind and go to a quieter and more spiritual environment. Artificial lighting, as provided by mobile apparatus, is highly valued by the urban gypsy. The outdoor recreational industry has significantly provided for, if only at holiday time, an industry that has a relatively high employment rate and beneficial to local communities.The gas mantle is in a fabric, pear shaped, of rayon fabric impregnated with cerium. It's appearance is similar to a very small fishing net. The fabric is very ply-able until it is heated by an open flame then it becomes more rigid and lets out an incandescent white light. Its colour is white to off white. It has a draw string fastened a t the bottom (to wrap around the flame source)lighting, gas, heating, camping, outdoor equipment lamp

Ill (maps), p.326non-fictionOver The Top is based on Harry Hartnett's diaries, which his family gave to Chris Byrett, a lawyer and WWI buff. It details the battles, the long marches and the recoveries with many amusing anecdotes which kept the men smiling and eased the tiredeness of the daily grind.world war 1914-1918 - campaigns - western front - personal recollections, henry george hartnett

Wooden model of a cyanide plant. A cyanide plant was used for dissolving gold from finely divided ores by means of dilute solutions of sodium or potassium cyanides. The model has five metal bins, there is some rust on the bins and scorch mark on the wooden base.mining, equipment, cyanide plant, gold cyanidation (also known as the cyanide process or the macarthur-forrest process) is a hydrometallurgical technique for extracting gold from low-grade ore by converting the gold to a water-soluble coordination complex. it is the most commonly used leaching process for gold extraction. the ore is comminuted using grinding machinery. depending on the ore, it is sometimes further concentrated by froth flotation or by centrifugal (gravity) concentration. water is added to produce a slurry or pulp. the basic ore slurry can be combined with a solution of sodium cyanide or potassium cyanide, however many operations utilize calcium cyanide, which is more cost effective. to prevent the creation of toxic hydrogen cyanide during processing, slaked lime (calcium hydroxide) or soda (sodium hydroxide) is added to the extracting solution to ensure that the acidity during cyanidation is maintained over ph 10.5 - strongly basic. lead nitrate can improve gold leaching speed and quantity recovered, particularly in processing partially oxidized ores.

Donated from the estate of Patricia Marie White, 2013Etching on papergippsland, artwork, permanent collection

Cast iron grain sickle with hand-cranked wooden handle, stone grinder head, and 4 wheels, on a wooden base.International Harvestersickles, grinding tools