Williams Family Collection. On the 20th December 1873 it was reported in the Tarnagulla Courier that arrangements were being made for the erection of a steam flour mill at Tarnagulla. Mr Bristol had purchased the necessary plant which would be erected with as little delay as possible. The site chosen was the premises occupied previously by Mr John Pierce, grocer and wine and spirit merchant, at the corner of King and Commercial Road. These premises were incorporated in the mill building. Suitable buildings for receiving and storing grain and flour had been erected already. On 10th January, 1874 an advertisement in the Courier called for tenders from masons, bricklayers and carpenters for the erection of a flour mill at Tarnagulla for H. C. Bristol, Esq. with all enquiries to be made from G. Minto, Engineer. In December 1881 the proprietors made a request to the Tarnagulla Borough Council for permission to lay pipes to the Municipal Dam, which was generally known as the Company's Dam, and to obtain water from the dam for milling purposes. This was granted. Steam was got up for the first time on 30th of March, 1882. A large quantity of wheat was stored ready for milling. Just prior to 29th of April 1882 the boiler at the mill burst, as the result of which two men, J. H. Smith and W. Hargreaves died and H. Joyce Bousfield, senior and junior, were seriously injured. The mill commenced operations on 13th June, 1882 with Mr W Fitzgerald as manager. The price offered for wheat was thirty-seven pence per bushell. It operated with grinding stones until considerable renovations were done in the early part of 1899 when new rollers and more up to date equipment installed. The mill was then known as the Tarnagulla Flour Mill Co., with Thos. Comrie as proprietor, Mr Fitzgerald was still manager, and Mr T. Leonard was the traveller. Much new equipment was put in and each of the three floors had different processes. The rollers were on the ground floor, the purifiers and elevators reel were on the second floor, plus the clean wheat bin directly over the Ganz rollers. On the top floor was the chop reel, bran reel, inter-elevator reels, brush machine cyclone sack hoist, dirty wheat shaker, clean wheat bin, dust rooms and also double damping rooms. A plant was also erected for the making of an improved quality of wheaten meal, for which purpose special machinery was procured and a pair of stones was left for grinding the meal. A complete plant for the crushing of oats etc was also erected. The driving power of the mill was supplied by a new engine complete with 16 inch cylinder, manufactured and erected by Bousfield & Co. of Eaglehawk. It was fitted with Pickering governors, connected with the cylinder was a super heater. The boiler was tested and all connections etc. overhauled, with much of it being completely renewed. There was a complete network of belts, spouts, elevators etc. all over the building, all conveniently placed. The plans etc for the new plant were drawn up by Mr J. Kilborn, manager of the firm of Bodington & Co., engineers and millwrights of Carlton, which supplied the whole of the machinery, excepting the engine. The work of erection was carried out by Mr Kilborn and his assistants to the entire satisfaction of Mr Comrie, who had gone to considerable expense to bring the mill to a completely up-todate machine, fitted with all of the most modern appliances available. An advertisement on May 6th, 1899 read: "Tarnagulla Flour Mill Co., Patent Roller Flour. Also their Digestive Wheaten Meal specially prepared for Porridge or Bread." In January 1901, 6000 bags of wheat were received weekly at the mill and it was a common sight to see the streets lined with wagons. In May 1902 the mill was lighted by gas and in July 1906 an application was made to the Tarnagulla Borough Council for permission to lay a tram track from the mill to the Railways Station. Council was agreeable to this provided suitable plans were submitted. In 1913, 15,000 bags of wheat were bought at three shillings and four pence per bushell. In January 1914 the mill was renovated. At this time 1500 bags of wheat were coming in daily, with 20,000 bags in storage. On 15th December, 1917 the mill was advertised for sale, to be sold on Friday, 21st December,.1917, on behalf of the Estate of the Late Thomas Comrie, who had died on 4th August, 1910. The Courier at that time recorded him as being responsible for the building of the mill and with being the sole proprietor. The mill was closed, apparently, for a short period. The Courier reported on 13th of September, 1918 that the mill had been sold to Mr O. Albert of Talbot and that it would re-open. An advertisement read: ALBERT. O. & SON, MILLERS. During 1920 the mill was closed and pulled down. It was later re-erected at Mildura where it operated for many years. (by Donald Clark)Monochrome photograph depicting view of Company's Dam and the flour mill in Tarnagulla. Handwritten on reverse: 'J. Caldwell and photographer's stamp 'C. Bock Photo Tarnagulla'.tarnagulla

Williams Family Collection. On the 20th December 1873 it was reported in the Tarnagulla Courier that arrangements were being made for the erection of a steam flour mill at Tarnagulla. Mr Bristol had purchased the necessary plant which would be erected with as little delay as possible. The site chosen was the premises occupied previously by Mr John Pierce, grocer and wine and spirit merchant, at the corner of King and Commercial Road. These premises were incorporated in the mill building. Suitable buildings for receiving and storing grain and flour had been erected already. On 10th January, 1874 an advertisement in the Courier called for tenders from masons, bricklayers and carpenters for the erection of a flour mill at Tarnagulla for H. C. Bristol, Esq. with all enquiries to be made from G. Minto, Engineer. In December 1881 the proprietors made a request to the Tarnagulla Borough Council for permission to lay pipes to the Municipal Dam, which was generally known as the Company's Dam, and to obtain water from the dam for milling purposes. This was granted. Steam was got up for the first time on 30th of March, 1882. A large quantity of wheat was stored ready for milling. Just prior to 29th of April 1882 the boiler at the mill burst, as the result of which two men, J. H. Smith and W. Hargreaves died and H. Joyce Bousfield, senior and junior, were seriously injured. The mill commenced operations on 13th June, 1882 with Mr W Fitzgerald as manager. The price offered for wheat was thirty-seven pence per bushell. It operated with grinding stones until considerable renovations were done in the early part of 1899 when new rollers and more up to date equipment installed. The mill was then known as the Tarnagulla Flour Mill Co., with Thos. Comrie as proprietor, Mr Fitzgerald was still manager, and Mr T. Leonard was the traveller. Much new equipment was put in and each of the three floors had different processes. The rollers were on the ground floor, the purifiers and elevators reel were on the second floor, plus the clean wheat bin directly over the Ganz rollers. On the top floor was the chop reel, bran reel, inter-elevator reels, brush machine cyclone sack hoist, dirty wheat shaker, clean wheat bin, dust rooms and also double damping rooms. A plant was also erected for the making of an improved quality of wheaten meal, for which purpose special machinery was procured and a pair of stones was left for grinding the meal. A complete plant for the crushing of oats etc was also erected. The driving power of the mill was supplied by a new engine complete with 16 inch cylinder, manufactured and erected by Bousfield & Co. of Eaglehawk. It was fitted with Pickering governors, connected with the cylinder was a super heater. The boiler was tested and all connections etc. overhauled, with much of it being completely renewed. There was a complete network of belts, spouts, elevators etc. all over the building, all conveniently placed. The plans etc for the new plant were drawn up by Mr J. Kilborn, manager of the firm of Bodington & Co., engineers and millwrights of Carlton, which supplied the whole of the machinery, excepting the engine. The work of erection was carried out by Mr Kilborn and his assistants to the entire satisfaction of Mr Comrie, who had gone to considerable expense to bring the mill to a completely up-todate machine, fitted with all of the most modern appliances available. An advertisement on May 6th, 1899 read: "Tarnagulla Flour Mill Co., Patent Roller Flour. Also their Digestive Wheaten Meal specially prepared for Porridge or Bread." In January 1901, 6000 bags of wheat were received weekly at the mill and it was a common sight to see the streets lined with wagons. In May 1902 the mill was lighted by gas and in July 1906 an application was made to the Tarnagulla Borough Council for permission to lay a tram track from the mill to the Railways Station. Council was agreeable to this provided suitable plans were submitted. In 1913, 15,000 bags of wheat were bought at three shillings and four pence per bushell. In January 1914 the mill was renovated. At this time 1500 bags of wheat were coming in daily, with 20,000 bags in storage. On 15th December, 1917 the mill was advertised for sale, to be sold on Friday, 21st December,.1917, on behalf of the Estate of the Late Thomas Comrie, who had died on 4th August, 1910. The Courier at that time recorded him as being responsible for the building of the mill and with being the sole proprietor. The mill was closed, apparently, for a short period. The Courier reported on 13th of September, 1918 that the mill had been sold to Mr O. Albert of Talbot and that it would re-open. An advertisement read: ALBERT. O. & SON, MILLERS. During 1920 the mill was closed and pulled down. It was later re-erected at Mildura where it operated for many years. (by Donald Clark)Photographic postcard, front image depicting view of Company's Dam and the flour mill in Tarnagulla. Handwritten on reverse: 'A Merry Christmas and a Happy New Year, E. Bool' and photographer's stamp 'C. Bock Photo Tarnagulla'.tarnagulla

The haversack is the brown version (as opposed to the tropical version) issued by the Australian army. Designed inspired from the British haversack with the Australian using a Lift The Dot system instead of a pull tab. This model uses the same ring strap connector as the British haversack.The object is representative of military light gas mask pouch circa mid 20th century.Of rectangular parallelepipped shape made of thick and sturdy fabric (canvas). The colour is faded to a very pale shade of green. Some patches of original colour remain under the pocket flaps showing a darker shade of green. Front view - Rectangular shape with overlapping closing flap with a fastener to maintain closed Left and right views - Both sides have a small pocket attached. Pockets are maintained closed with a press-stud There is a metal buckle on top of the small pockets to attach a lanyard (using items 2020.000018-2 & 2020.000018-3). Back view - Rectangular with metal hooks on top and bottom to enable attachment to a strap/webbing. Bottom view - ‘U’ shaped stitching apparent (for internal pocket) with a metal stud slightly off center of the base (enabling closing of the internal pocket). Top view - closing flap overlapping on 3 sides and attached to the fabric forming the back part of the pouch. Inside view - On the inside, there is a small pocket at the bottom closed with a press-stud. There is also a loop of fabric fastened with another metallic press-stud. There is also an insert against the back pannel (full heighth of the pannel).The fastener of the main cover flap has "LIFT THE DOT" inscribed on the outside. Contains the Department of Defense symbol on the inside of the cover flap.

The investigation of the x-ray appears early on to have been a priority research topic at the University of Melbourne’s School of Physics. This interest was sparked by the appointment in 1889 of Professor T.R. Lyle. Lyle, who was head of the school until 1915, is thought to have been the first person in Australia to have taken an x-ray photograph. A copy of this photograph can be found in the School of Physics Archive. For this particular experiment Lyle actually made his own x-ray tube. His successor, Professor Laby, continued to work with x-rays. During the 1920s Laby worked on the x-ray spectra of atoms and in 1930 he co-published with Dr. C.E. Eddy, Quantitative Analysis by X-Ray Spectroscopy. Also with Eddy, Laby produced the landmark paper Sensitivity of Atomic Analysis by X-rays. Laby went on to have an x-ray spectrograph of his own design manufactured by Adam Hilger Ltd. (see cat. No. 38). School of Physics, the University of Melbourne Cat. No. 22. Jacqueline Eager Student Projects Placement, Cultural Collections 2005 In 1913 Coolidge overcame the limitation of the narrow operating range of the gas X-ray tubes with the invention of the vacuum X-ray tube. A filament heated by an electric current directly releases electrons by thermionic emission. In thermionic emission, electrons are emitted from a metal surface directly by the application of an electric current to heat a wire filament. The electrons accelerate to the anode and produce X-rays. The anode has associated cooling fins due to the high temperatures attained by the release of kinetic energy by the electrons on colliding with the anode. Internal Glass sleeve: “A941/L2593/2821”

Red, blue and gold soft covered booklet. Images include the Ballarat Town Hall, The Eureka Monument, Begonia house, Ballarat Botanic Gardens,M.B. John, Sebastopol Technical School, reservoirs, Ballarat Base Hospital, Calembeen Park, Ballarat Industrial Estate, Lal Lal Falls, Buninyong Golf Course, Mayne Nickless, Firth Cleveland Plant, Bendix Mintex, Bunge, (Aust.) Pty Ltd, Martin's Stoneware, Sunshine biscuits, Timken, M.B. John and Hattersley Limited, Ballarat Gas Company, Ballarat Paper Mills, Ballarat Woollen and Worsted Mills, Eclipse Motors, E. Lucas and Co, Milk Processors Pty Ltd, Eureka Valves, Paddle Bros., George Farmer Pty Ltd, Sebastopol technical School, Burrumbeet and Windermere Co-Operative Society Ltd .greater ballarat association, develop victoria council, ballarat, begonia queens, yvonne arstall, carol penrose, wendy longmore, lal lal falls, ballarat town hall, the eureka monument, begonia house, ballarat botanic gardens, m.b. john, sebastopol technical school, reservoirs, ballarat base hospital, calembeen park, ballarat industrial estate, buninyong golf course, mayne nickless, firth cleveland plant, bendix mintex, bunge, martin's stoneware, sunshine biscuits, timken, m.b. john and hattersley limited, ballarat gas company, ballarat paper mills, ballarat woollen and worsted mills, eclipse motors, e. lucas and co, milk processors pty ltd, eureka valves, paddle bros., george farmer pty ltd, yvonne arsrtall, wendouree, shire of wendouree, guncotton factory, regina glass fibre