Coloured photo of Memorial Plaque at St. John's Catholic Church, Mitcham.st. john's catholic church, mitcham, air hill burying ground

Bushfire behaviour is influenced by many things including temperature, relative humidity, forest type, fuel quantity and fuel dryness, topography and even slope. Wind has a dominant effect on the Rate of Spread (ROS), and also bushfire size, shape and direction. Fuel arrangement is as important as fuel quantity (tonnes/ha). Fibrous and ribbon bark, together with elevated and near-surface scrub fuels act as ladders which lead flames into the tree canopy. But 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. Since the 1930s foresters, firefighters and researchers have been working to develop quick and reliable techniques for measuring fuel moisture content. One of the most accurate methods is slowly drying a sample of fuel in a conventional oven for 24-48 hours to remove all the moisture and measuring the weight difference, but this takes time and is not practical in the field when rapid measurements are needed. But oven drying is often used as a benchmark to compare other methods. Microwave ovens are faster but can cause uneven drying and even char the fuel. They are also not very practical for use in the field. Some mathematical models rely on weather records such as rainfall, wind speed, evaporation, cloud cover, shading, relative humidity, slope, aspect and season of the year to predict soil and fuel moisture. The Keetch-Byram Drought Index of soil dryness is the most common. But complex fuels with leaves, twigs, grass etc make the predictive models often inadequate for fine fuels. The most common technique in Victorian forests until recently was the trusty Speedy Moisture Meter. Originally developed in England during the 1920s for measuring moisture in wheat and other grains it was adapted for Australian forest fuels in the 1950s (I think). Fuel was first ground using a Spong mincer, often attached to the bullbar of a vehicle, and a small sample placed into the Speedy together with a measure of calcium carbide and then sealed. A chemical reaction created gas pressure which was read on the external dial. There were important techniques with cleaning, mincing and using the chemicals with the Speedy to give reliable readings, but it was quick, inexpensive, robust, portable and practical in the field. It was used routinely before igniting a fuel reduction burn or measuring fuel moisture differentials on slash burns. But in about 1996, Karen Chatto and Kevin Tolhurst from the Department’s Creswick Research Station developed the Wiltronics Fuel Moisture meter which measured electrical resistance. Wiltronics is an Australian owned company operating from Ballarat. The final result was a kit that was portable, accurate and could reliably measure fuel moisture contents between 3% and 200%. Although expensive, it is now widely used by fire agencies around the world which has virtually relegated the Speedy to the back cupboard.Prototype Fuel moisture meterT-H Fine Fuel Meterforests commission victoria (fcv), bushfire, forest measurement

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

Used to mince fuel samples to measure moisture content Representative samples of fuel such as bark, leaves, twigs etc were minced and the moisture measured 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. Fuel mincer Made at Altona as an alternative design to the commercial Spong Mincer With wooden plug to push fuel into the mincer and glass jar to collect sampleforests commission victoria (fcv), bushfire, forest measurement

Used to mince fuel samples to measure moisture content Representative samples of fuel such as bark, leaves, twigs etc were minced and the moisture measured 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. Battery operated Fuel mincer. Plugs into 12 volt car cigarette lighter socket Adaption using parts from commercial food processor Made at Altona as an alternative design to the commercial Spong Mincer Glass jar to collect sampleforests commission victoria (fcv), bushfire, forest measurement

Representative samples of fuel such as bark, leaves, twigs etc were minced and the moisture measured 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. Adaption of a timber moisture meter made by the FCV radio lab to measure fuelforests commission victoria (fcv), bushfire, forest measurement

Used to measure fuel moisture content Representative samples of fuel such as bark, leaves, twigs etc were minced and the moisture measured 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. Adaption of a commercial timber moisture meter measure fuelTF 933 Cforests commission victoria (fcv), bushfire, forest measurement

Used to measure moisture content by electric current resistance Representative samples of fuel such as bark, leaves, twigs etc were minced and the moisture measured 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. Commercial timber moisture meter used to measure fuelDCR9-Tforests commission victoria (fcv), bushfire, forest measurement

From the early 1960s, the Forests Commission had pre-season arrangements in place with local aeroclubs and pilots across regional Victoria. Air observers from FCV districts routinely flew during the summer months in small, fixed-wing aircraft on fire spotting missions and to map fire boundaries. The information was often needed quickly by crews on the ground or in the control centre and these small chutes were used to drop messages and maps from the reconnaissance aircraft on a low pass above a cleared area like a football field. About 3-foot long when fully extended, they had a small pouch secured with a press stud for the map or package. The chutes were made from tough canvas with a small, weighted sandbag at one end and a long yellow streamer tail on the other to help direct its fall and locating it on the ground. Drop chutes were still in common use in the 1990s, but the increased availability of helicopters combined with improved digital data transfer made drop chutes redundant. Simple, but now redundant technologyAerial drop chute"Return to Forests Comm Vic" stenciled on sidebushfire

The letter to editor is written from L. D. Emerson-Elliot. The writer commends Australian nurses who shared in the danger of air and ground attacks in Singapore by the Japanese in 1942. They go on to detail the a particular incident when the ship they were on was under heavy air attack. The captain sent them to check on the nurses and their charges. Through the horror of blasted metal, blood and shattered bodies the nurses were quietly and steadfastly continuing their work. The writer states that Sister Anderson received the George Medal for that day, but that they believe that all nurses who have served in wars deserve a memorial. They had heard that a submission was made for a memorial for military nurses on Anzac Parade, Canberra, but that for almost a year nothing had happened.Photocopied news paper clipping of a letter to the editor consisting of three columns of text under a title'009/04 '96 11:00 [phone symbol] 06 266 4982 DGAFHS [symbol] 002' [typed/printed before photocopied, along top] 'THE CANBERRA TIMES 9 APR 96' [written before photocpied, centre top] 'Page 8' [blue ink top, following photocopied writing' [paragraph at the end of the second column and beginning of the third column is highlighted, yellow ink] 'Sign letter, give your full address and . / phone number. Not more than 250 words' [blue ink, centre below clipping] 'Address' [underlined, blue ink, bottom left] 'Letters to the Editor / The Canberra Times / PO Box 7155 / Canberra Mail Centre / ACT' [blue ink, bottom left]ww2, wwii, mv empire star, captain capon, sister anderson, royal college of nursing australia, national capital planning authority, charnwood

A Control Joy Stick presented to Pilot Officer Eric V. Read in 1937 after it was recovered from an aircraft he was flying had crashed in the Brisbane Ranges in December 1936. Eric Read was a 21 year old RAAF pilot who was on a flight over the Bacchus Marsh region to make meteorological observations. Read's plane, a Bristol Bulldog biplane, came down in bad weather and crashed into a heavily wooded area of the Brisbane Ranges between Staughton Vale and Mount Wallace. An extensive air and ground search was conducted and after 32 hours Read was located, alive, but badly injured and unable to get out of the cockpit of the plane. He was first located from the air and then a rescue party was able to reach him through rough country and bring him to safety. Read recovered from his injuries and many years later gifted the control stick of the aircraft he had been flying as an item for the collection of the Bacchus Marsh and District Historical Society.This item is of local historical significance as an object related to a notable aircraft accident and subsequent rescue of the pilot. It is also significant for its rarity as a surviving piece of aviation equipment from this era.Control or Joy stick mounted on a wooden base.aircraft, aircraft accidents, eric v. read

Poppy was made from lead bullets collected from historical Rifle Range used by Light Horse Brigade and Voluntary Defence Corps dating back to 1906. Part of the collection of Kevin John Herdman, No. 397661. See Cat No. 5942P for details of his service.3D red poppy in a brown wooden frame. Poppy sits in a khaki coloured background. Poppy fabricated from lead. Provenance details on back with text in black type.Text on back in black type: "Fired from a rifle or gun, they sound, Fly through the air, some fall to the ground, covered in soil and grass they lay, 100 years we remember our heroes this day, Now rise the bullet recycled from the past, A beautiful poppy that will ever last" by Ron Davis, www leadastray.com.auframed item, poppy, souvenir, kevin john herdman

Black and white photograph with sepia copy: metal poppet head. Winding wheels on top, mine sheds in foreground and background. Ladder from ground level to first platform of poppet head. Elevated tramway behind. Air raid sirens on top of poppet head. Possibly North Deborah Gold Mine. mining, 1980's., bendigo, mine site, poppet head, air raid siren