Joly Meldometer The Joly meldometer was created to determine the melting point of minerals. W.E. Wilson, an astronomer and author, stated in 1900 that the Joly meldometer consisted of a ‘a strip of platinum on which minute fragments of any mineral can be placed, while any alteration in its length can be determined by means of a micrometer screw which touches a lever connected with one end of the strip. The strip can be heated by an electric current, and is calibrated by observing the micrometer readings corresponding to the temperatures at which some substances of known melting-points melt’i . One reason why the Joly meldometer was seen as a successful addition to science was the small amount of any substance that it required for testing. Only a minute sample was needed for the instrument to work and so a tiny part could be taken from a delicate item without destroying itii . The instrument was originally manufactured by the Irish company Yeates & Son of Dublin. The Yeates family business was established in the early 1790’s and is thought to have operated until approximately 1922iii . Their business slogan was recorded as ‘Instrument makers to the University’, a slogan which proudly exhibited their relationship with Trinity College, Dublin. The company was located directly opposite Trinity College, the place where the Joly meldometer was created. Working in such close proximity must have assisted this business relationship. The inventor of this meldometer was Irishman John Joly. Joly was born in 1857 at the Church of Ireland Rectory, Hollywood House. His education led him to Trinity College Dublin where, by 1891, he had obtained a Bachelor of Engineering degree as well as a Doctorate of Science. The entirety of his working life appears to have taken place at Trinity College although he is known to have travelled in order to consult with other scientists such as the world renowned Sir Ernest Rutherford. The Joly meldometer was used for a variety of different purposes, with scientists often adapting the instrument to suit their own needs. For instance, the previously mentioned astronomer W.E. Wilson adapted the meldometer to assist him in measuring the radiation of the suniv . Joly used his device in an attempt to ascertain the age of the earth. In 1913, along with Sir Rutherford, Joly came to the conclusion that the earth was approximately 400 million years old. They did this by analysing the decay of radioactivity in minerals. According to our present knowledge of the earth this was a much more accurate date than the dates Joly had previously derived. He had first thought that the earth was 97 million years old due to the volume of sodium in the oceans. Joly’s second analysis of the topic had resulted in the age of 80 million years. This figure was based on the accumulation of sediment. Apart from designing his meldometer, Joly is also remembered for his work with colour photography. In 1894 Joly discovered a method for creating colour photographs from a single platev . He also studied the use of radiation as a treatment for cancer and persuaded the Royal Dublin Society to establish the Radium Institute to assist hospitals. In 1933 Joly passed away at the age of seventy-six. Jacqueline Eager Student Projects Placement, Cultural Collections 2005 iMollan, Charles, Irish National Inventory of Scientific Instruments, Samton Limited, 1995, p. 302. iiJoly, John, 'On the determination of the melting points of minerals, Part 1. Uses of the meldometer', Proceedings of the Royal Irish Academy, Vol. 2., 1891. iiiInstitute for Learning Technologies, "Stephan Mitchell Yeates' http://www.ilt.columbia.edu/projects/bluetelephone/html/yeates.html, accessed on 04.10.2005 ivMollan, Charles, Irish National Inventory of Historic Scientific Instruments, op cit. vMollan, Charles, The Mind and the Hand: Instruments of Science 1685-1932, Samton Limited, Dublin, 1995, p. 34.The following from #2975 in UDE UNIVERSITY COLLEGE DUBLIN ENGINEERING list in the “Irish National Inventory of Historical Scientific Instruments” by Charles Mellon (P/C in file for Cat no 272. “....meldometer as an instrument ‘for the purpose of finding the melting-points of minerals, hence its name. As used by him (Joly), it consists of a strip of platinum,on which minute fragments of any mineral can be placed, while any alteration in its length can be determined by means of a micrometer screw which touches a lever connected with one end of the strip. The strip can be heated by an electric current, and is calibrated by observing the micrometer readings corresponding to the temperatures at which some substances of known melting-points melt’.” Ref. : J. Joly, Proc. Roy. Irish Acad. 3rd series vol 2 (1891),38-64.

A fading black and white photograph of female students at Bendigo Teachers' College in the year 1929. The unnamed students are seated in front of the Old Court House. They are dressed in a uniform of tights with a white shirt and ribbon or tie at the neckline. See 3320.100bendigo, education, bendigo teachers' college students, la trobe university bendigo collection, collection, bendigo, education, bendigo teachers' college, photo, photograph, photographs, photography, photos, tertiary education, teacher training, teaching, history, miss j.c. burnett, mr. geoff pryor, old court house, court house

Two black and white photos of the Old Court House in the year 1929. This was the second site of the Bendigo Teachers' College from 1927 - 1931. Note on the back of the second photo 'Impossible to get better photo as building is on a hill above the Park'. (Rosalind Park.) See 3320.100bendigo, education, old courthouse, la trobe university bendigo collection, collection, bendigo, education, bendigo teachers' college, tertiary education, teacher training, photo, photos, photograph, photographs, photography, court house bendigo, old court house bendigo, miss j.c. burnett, mr. geoff. pryor, building, buildings, place, site, courthouse, old courthouse

A black and white photograph of the rear of the Old Courthouse Bendigo. 'These newer parts were added for the Bendigo Teachers' College and occupied 1929-1931'. See 3320.100bendigo, education, old courthouse, la trobe university bendigo collection, collection, bendigo, education, building, buildings, site, place, teacher training, tertiary education, bendigo teachers' college, court house, courthouse, technical school, bendigo technical school, bendigo high schoool, high school, bendigo girls' school, girls' school, photo, photos, photograph, photographs, photography, miss j.c. burnett, mr. geoff. pryor, old courthouse, old court house

1) Bendigo the Golden Heart of Victoria 2) News from Bendigo May, 1973 3) Some Scenes of Bendigo Yesteryear 4) Cover Bendigo Advertiser Souvenir of the Shamrock Hotel 5) Saving the Shamrock - Doug McClure 6) Farewell Bendigo's Trams April, 1972 7) 100 Years of Trams 8) Gold Mine a Popular Attraction 9) Tomorrow the end (Trams) April 1972 10) Trams 1890-1903-1972/ Photo New Chum 11) Vintage Talking Trams 12) In Search of a Home for Sun Loong 13) Bendigo Dragon City 14) History Indicates that Dragons is not as Silly 15) Bendigo's Dragon is Something to be Proud of 16) Unravelling the Dragon's Mysteries 17) Reputation Precede it 18) Tourism 19) Haunted by the Ghosts of the Gold Rush 20) Bendigo Undertaking Firm Installs Complete Motor Funeral Equipment 21) Built on the Foundations of Gold 22) Photos: Bridge Street - Oakley's Establishment 23) A City Built on reefs of Fabulous Wealth 24) Bendigo Company Has High Hopes for Old Mine 25) The Central Deborah 26) Central Deborah Reaches New Depths 27) WMC Prepares the Way for Bendigo Mining Revival 28) Historical Background of Fortuna 29) Opening of TAFE College 30) 60 Protesting Nurses Greet the Premier 31) A History Written in Bricks 32) The Golden Age of Bendigo Theatre Part 1 33) The Golden Age of Bendigo Theatre Part 2 34) J.H. Curnow is Back Home 35) Fortuna Historical Background 36) Photos of Fortuna. Folder 110 now in Box 417. AV 03/11/2022

The front and second page of 'Silver and Blue' the Bendigo Teachers' College magazine. On the front page is a black and white photograph of The Teachers' College, Bendigo and a list of the Editorial Staff. Editress: Miss S. Ottenson. Business Manager: Mr. A. Lewis. Secretary and Treasurer: Mr. A. Harris. Committee: Miss King, Miss Groom, Mr. Duggan. The second page of silver and blue tells us it is vol. 1. No. 5 and the subscription for this magazine is 2/6 per copy. The editorial contains an illustration of a student with a clock and work mounting up. The message in the editorial is students are 'on the threshold of life.' Some students will be able to cope with difficulties better than others. The editorial continues to tell students keep 'striving to reach the stars' but keep their sense of humour despite life being a 'serious business'. November, 1930. See 3320.100bendigo, education, magazine, la trobe university bendigo collection, collection, bendigo, education, bendigo teachers' college, tertiary education, teacher training, magazine, magazines, building, courthouse, old courthouse, court house, old court house, buildings, miss j.c. burnett, mr. geoff. pryor, miss s. ottenson, mr. a. lewis, mr. a. harris, miss king, miss groom, mr. duggan

A black and white photograph of an arial view of Bendigo Teachers' College from the Lookout Tower in Rosalind Park in the 1950's. Room 2 is the old Police stable and there are two aluminium pre-fabs. The other rooms are 3 and 4 and 5 and 6. The Bendigo jail is in the background. On the far right is the Camp Hill State School. 1950's. See 3320.100bendigo, education, bendigo teachers' college history, la trobe university bendigo collection, collection, bendigo, tertiary education, teacher training, education, photo, photos, photograph, photographs, lookout tower, rosalind park, bendigo jail, bendigo gaol, jail, gaol, police stable, camp hill state school, history, building, buildings, site, place, bendigo teachers' college

A black and white photograph of Bendigo Teachers' College rooms 3 and 4 and 5 and 6. Taken from the old Municipal Pool in the 1950's. In the background is the Camp Hill State School. See 3320.100bendigo, education, bendigo teachers' college, la trobe university bendigo collection, collection, bendigo, education, bendigo teachers' college, teacher training, tertiary education, photo, photos, photograph, photographs, bendigo municipal pool, municipal pool, swimming pool, camp hill state school, place, site, building, buildings, history

Document. Harry Biggs Collection. A letter from C. C. Gale, Secretary, Dept. of Public Works, dated 25yh Sept. 1951 to The Hon. T. H. Grigg, MLC, Parliament House, Melb. In the letter the sender is telling The Hon. Grigg that The Education Dept. wants to retain the Old Police Barracks for the use of Bendigo Secondary College.C. C. Gale Sectetary of Public Works.organization, club/society, community, harry biggs collection, old police barracks

The badge would be given to old collegians who were members of the Old Collegians' Association.Small circular badge with blue boarder and white in the centre. Along the boarder in gold is written Old Collegians Association. Across the centre in an S-shape is written in gold, S.P.C. Ballarat. The white background has a picture of the SPC crest.old collegians, badge, 1916

Article by A.W. Jessep for 75th Anniversary ed. Of College magazinea.w. jessep, 75th anniversary, college magazine

Poster advertising Centenary Celebrations, 11 copiescentenary, 1991, celebrations