An original Kerr-Grant Microbalance, modified by E.J.Hartung This balance was invented in the chemistry department by Bertram Dillon Steele, later first Professor of Chemistry at the University of Queensland 1910-1930, in collaboration with Professor Kerr Grant, Physics. The design was widely used by other chemists, including Masson's mentor, Professor Ramsay, working in London on newly discovered rare gases (especially Radon), and Professor Hartung in Melbourne, investigating the chemistry of the decomposition of silver salts in photographic processes. The principle of the microbalance was to measure the change in density of a gas by the shift in the balancing beam due to a change in pressure of the gas in the balance case. The quartz balancing beam was made by Bertram Steele who was particularly skilled in glassblowing. A quartz beam is the beam of the Aston microbalance based on the Steele/Grant instrument, and described by F.W. Aston, the inventor of the mass spectrometer. The bulb at one end of the beam contained a fixed amount of air, so that a change in the pressure of gas in the balance case changed the buoyancy of the beam, yielding a displacement in the beam which could be measured. By this means, differences in weight of about 10 nanogram could be measured, in amounts of up to 0.1 gram. Such differences are significant the increase in weight of a metal sample due to surface oxidation (Steele's interest) in the weight loss due to radioactive decay of Radium (Ramsay's work), and in the estimates of density change due to the isotopic distribution of Neon (Aston). Ernst Johannes Hartung was a chemist and astronomer. Educated at the University of Melbourne (BSc 1913, DSc 1919), he became lecturer in 1919, associate professor in 1924, and succeeded Rivett as chair of chemistry in 1928, remaining in this position until 1953. Hartung?s lecturing style surged with enthusiasm and he employed the use of screen projections to demonstrate chemical phenomena to large undergraduate classes. In 1935 he recorded Brownian movement in colloidal solutions on 35 mm cinefilm, which was later copied onto 16 mm film for the Eastman Kodak Co. World Science Library. This can be viewed in the Chemistry laboratory. He researched the photo decomposition of silver halides, and was awarded the David Syme Prize in 1926. He devoted time to the design and construction of a large, new chemistry building for the School of Chemistry (built 1938?1939). During World War II he was approached by Professor Thomas Laby, chairman of the Optical Munitions Panel, to chair the advisory committee on optical materials, to produce high quality optical glass in Australia. This was successful, with large-scale production achieved within ten months at a reasonable cost. Hartung served three terms as general President of the (Royal) Australian Chemical Institute, was an ex-officio councillor of the Council for Scientific and Industrial Research, and a Trustee of the Museum of Applied Science (now part of Museum Victoria).An original Kerr-Grant Microbalance, modified by E.J. Hartung.

Stages in development of optical glass. Very early experiments by E.J. Hartung. Ernst Johannes Hartung was a chemist and astronomer. Educated at the University of Melbourne (BSc 1913, DSc 1919), he became lecturer in 1919, associate professor in 1924, and succeeded Rivett as chair of chemistry in 1928, remaining in this position until 1953. Hartung?s lecturing style surged with enthusiasm and he employed the use of screen projections to demonstrate chemical phenomena to large undergraduate classes. In 1935 he recorded Brownian movement in colloidal solutions on 35 mm cinefilm, which was later copied onto 16 mm film for the Eastman Kodak Co. World Science Library. This can be viewed in the Chemistry laboratory. He researched the photo decomposition of silver halides, and was awarded the David Syme Prize in 1926. He devoted time to the design and construction of a large, new chemistry building for the School of Chemistry (built 1938?1939). During World War II he was approached by Professor Thomas Laby, chairman of the Optical Munitions Panel, to chair the advisory committee on optical materials, to produce high quality optical glass in Australia. This was successful, with large-scale production achieved within ten months at a reasonable cost. Hartung served three terms as general President of the (Royal) Australian Chemical Institute, was an ex-officio councillor of the Council for Scientific and Industrial Research, and a Trustee of the Museum of Applied Science (now part of Museum Victoria).Optical glass

Large horseshoe magnet, given to young E.J. Hartung. by an uncle. Ernst Johannes Hartung was a chemist and astronomer. Educated at the University of Melbourne (BSc 1913, DSc 1919), he became lecturer in 1919, associate professor in 1924, and succeeded Rivett as chair of chemistry in 1928, remaining in this position until 1953. Hartung?s lecturing style surged with enthusiasm and he employed the use of screen projections to demonstrate chemical phenomena to large undergraduate classes. In 1935 he recorded Brownian movement in colloidal solutions on 35 mm cinefilm, which was later copied onto 16 mm film for the Eastman Kodak Co. World Science Library. This can be viewed in the Chemistry laboratory. He researched the photo decomposition of silver halides, and was awarded the David Syme Prize in 1926. He devoted time to the design and construction of a large, new chemistry building for the School of Chemistry (built 1938?1939). During World War II he was approached by Professor Thomas Laby, chairman of the Optical Munitions Panel, to chair the advisory committee on optical materials, to produce high quality optical glass in Australia. This was successful, with large-scale production achieved within ten months at a reasonable cost. Hartung served three terms as general President of the (Royal) Australian Chemical Institute, was an ex-officio councillor of the Council for Scientific and Industrial Research, and a Trustee of the Museum of Applied Science (now part of Museum Victoria).Horseshoe Magnet �

Ernst Johannes Hartung was a chemist and astronomer. Educated at the University of Melbourne (BSc 1913, DSc 1919), he became lecturer in 1919, associate professor in 1924, and succeeded Rivett as chair of chemistry in 1928, remaining in this position until 1953. Hartung?s lecturing style surged with enthusiasm and he employed the use of screen projections to demonstrate chemical phenomena to large undergraduate classes. In 1935 he recorded Brownian movement in colloidal solutions on 35 mm cinefilm, which was later copied onto 16 mm film for the Eastman Kodak Co. World Science Library. This can be viewed in the Chemistry laboratory. He researched the photo decomposition of silver halides, and was awarded the David Syme Prize in 1926. He devoted time to the design and construction of a large, new chemistry building for the School of Chemistry (built 1938?1939). During World War II he was approached by Professor Thomas Laby, chairman of the Optical Munitions Panel, to chair the advisory committee on optical materials, to produce high quality optical glass in Australia. This was successful, with large-scale production achieved within ten months at a reasonable cost. Hartung served three terms as general President of the (Royal) Australian Chemical Institute, was an ex-officio councillor of the Council for Scientific and Industrial Research, and a Trustee of the Museum of Applied Science (now part of Museum Victoria).Set of analytic weights, used by E.J.H. in most of his work

Series of newspaper clippings about travelling on Melbourne trams, people, conductors, and what can happen. .1 - Newspaper clipping titled "Swanston Express", from The Age 18/5/1985 by Alan Fitzgerald, about travelling on a tram and being on the wrong tram to an unusual destination and the things that can happen. Based around the story that a person was supposed to fly to Oakland USA but finished up in Auckland NZ. .2 - ditto titled "Its not easy losing green", from The Herald, 12/12/81 written by Lawrence Money about the loss of the green W's and their quirks - like sand on the floor, ticket butts, trap doors, peep holes, Melbourne habitats, compared to the orange trams. .3 - Letter to the Editor "Keep our trams and buses green", written by R Francis head of the graphic design, Swinburne Institute of Technology - regarding the colour of our vehicles, heritage and the craze of having orange colours - industrial design. Dated 8/5/1982. .4 - Editorial, 17/1/1995 - titled "Other peoples' trams" - The Age, about the reliance on Melbourne trams by its people, comparison with other large cities e.g. St Petersburg, cost of running it, finishes with the view that the system should be extended.trams, tramways, melbourne, behaviour, tramways, crews, tramcars, people and places, sanding equipment, compressors, livery, colour schemes

Journal or magazine - stapled pages approx. 100 printed on semi gloss paper, with glue outside cover, titled Journal of the Institution of Engineers Australia" - Vol 6, No. 10, Oct. 1934 - Special issue - Melbourne Centenary Celebrations 1934 - 1935. Contains transactions of radio frequency, institution and related activities, and 100 years of Engineering in Victoria. These include maps of Victoria and Melbourne, Engineering Education (Kernot), Metropolitan Roads and Bridges by J. Noble Anderson City Engineer of Richmond, Country Roads and Bridges, Railway Development (VR), Metropolitan and Provincial Tramways (Strickland and Russell), Port of Melbourne, Outer ports, air transport, water supply, sewerage and drainage, gas industry, electricity supply, communications (telephone and telegraph), industrial development and mining. Has ads for British Insulated cables, Thompsons Engineer, Goodyear, GEC - British General Electric, Associated General electric, Vickers and many other companies. Photocopy of article from the Bob Lilburn collection.trams, tramways, centenary, victoria, tramways, railways, secv, mmtb, cable trams

Letter to an unidentified Life Member asking for assistance in organising fundraising events to support Special Blind Appeal. The letter continues on to a second page, however this is missing. This is an example of a joint appeal between the RVIB and the AAFB, who usually preferred to work independently.1 photocopied letter with illustrations at topTop left hand corner is a lighthouse with the words 'Education and Maintenance of Blind Children, Industrial Professional Training Etc of Blind Adults, Homes Etc for Aged and Infirm Blind' written on the tower. The light that shines towards a female child and an adult male who are both wearing blindfolds, contains the wording 'Special 50,000 (pound) appeal for the Blind Children & Adults of Victoria". To immediate left of the people is written "Blind/and seeking the light/your generous donation will help them find it'. To the right of the rocks upon the which the lighthouse stands "Kindly address donations Hon. Treas. of Blind Appeal, The Lord Mayor of Melbourne, Cr. Harold Luxton M.L.A., Town Hall, Melbourne". Underneath the lighthouse against the left edge of the paper "Institutes participating in this appeal - The Royal Victorian Institute for the Blind and the Association for the Advancement of the Blind - these organisations care for the blind of Victoria from the cradle to the grave. Please address all correspondence S.W,. Hedger, Secretary Blind Appeal, Royal Victorian Institute for the Blind, St Kilda Road, Prahran, S.1. Vic, Phone W 6500. Blind Appeal Enquiry Office: Nicholas Building, 5th Floor Swanston Street, Melbourne, Phone F 6418."royal victorian institute for the blind, association for the advancement of the blind, fundraising