Yellowish soft covered book with yellow and black textnon-fictionThese four-figure tables have been prepared to cover all requirements for tables of the mathematical functions used in secondary and early university levels.

Numerous mathematical tables for the computation of Geographical Positions and rectangular coordinatesHard covered Book, cloth covered, A5 in size, 169 pages, Title Page, contents Page, 5 x blank pages at front, 15 x blank pages at rear."? Slattery" , "Sgt RC Andrews. School Tac? Adm. Seymour" all crossed out, on 1st page inside cover. "Please Return to: Survey Directorate AHQ Victoria Barracks Melbourne" Front and rear pages.royal australian survey corps, rasvy, fortuna, army survey regiment, army svy regt, asr

Dark maroon hard cover book 454 pagesHandwritten inside front cover in blue pen "J.T. Young / 1941 / Probably printed / c.1900 or earlier" Handwritten in pencil on front page "H.B Freeman / Eastern Cable Coy / Sydney NSW"" second page handwritten in black ink "M. Henry

This technical textbook is the nineteenth edition of the book by Henry Raper, Lieutenant in the Royal Navy with awards that include F.R.A.S. (Fellow of the Royal Astronomical Society) and F.R.G.S. (Friend of the Royal Geographical Society). The book is dedicated in honour of Rear-Admiral Sir Francis Beaufort K.C.B., Hydrographer to the Admiralty. He was awarded the title K.C.B. (King's Commander) as a Member of the Order of Bath, an order of British Chivalry, The book was first published in 1840 and soon became a resource for navigation students. It includes topics on nautical navigation, astronomy, navigation charts, calculations and mathematical tables, time, tides, ships, longitude, and position at sea. Thomas A. Hull, who revised and expanded this edition, was a Commander in the Royal Navy and had previously been Superintendent of Admiralty Charts used for navigation worldwide by seamen from many walks of life. The publisher, J D Potter of London, was at that time the sole agent for the Admiralty Charts produced by the Royal Navy. Printer Spottswoode and Co.,. was established by William Strachan in 1738. In 1819 his nephews A and R Spottswoode took over the business and bought premises in New-Street Square and Shoe Lane. In 1850 over 200 workers were employed by the firm. and five years later the business became Spottswoode & Co. Andrew Spottswoode invented the Spottswoode Press.This technical book was very popular as a textbook for students of maritime navigation, written and updated by members of the British Royal Navy and relied upon for accurate advice and information. The first edition was published in 1840, this edition was updated, expanded and published in 1891 when ports around the world were filling with travellers, merchants and business people. Title: The Practice of Navigation and Nautical Astronomy Author: Henry Raper, Lieut, R.N., F.R.A.S., F.R.G.S. Nineteenth Edition, revised and enlarged by Commander Thomas A. Hull, R.N., Late Superintendant of Admiralty Charts Dedication: To Rear-Admiral Sir Francis Beaufort K.C.B. Publisher: J D Potter, London, sole agent for the sale of Admiralty Charts Printer: Spottswoode and Co. New-Street Square, London Date: 1891 Small leather hardcover book with gold embossed text and lines on the spine. The Dedication in the book is as follows: - "To Rear-Admiral Sir Francis Beaufort K.C.B. Hydrographer to the Admiralty. Sir, The eminent station which you occupy in the naval scientific world renders it highly gratifying to me to dedicate the following Work to you as a testimony of my regard and esteem; while the general accordance of my views on the subject with those of your more experienced judgement, gives me the greater confidence in laying my labours before the Public. I have the honour to be, Sir, Your obedient servant, HENRY RAPER"flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill, warrnambool, flagstaff hill maritime village, book, navigation, nautical astronomy, hydrography, nautical charts, nautical navigation, astronomical navigation, admiralty charts, henry raper, thomas a. hull, royal navy, j d potter, royal astronomical society, royal geographical society, calculations, mathematical tables, longitude, latitude, nautical time, location at sea, position at sea, maritime, practical navigation, spottswoode and co., sir francis beaufort, k.c.b., rear-admiral sir francis beaufort, hydrographer to the admiralty, scientific book, naval science

Silver soft covered book with black textnon-fiction

Orangish soft covered book with red textnon-fiction

Logarithm tables have been used for centuries to calculate complex mathematics. Tables were recorded and looked up instead of completing these calculations. This book is an example of these calculations. They were commonly used in many fields including engineers, navigators and scientists. An item commonly used by people in the mathematical field. Owned by a local person and sold by a local business in Warrnambool.Small blue hard- covered book with cloth finish. Title in black text. Edge of pages is coloured red. 161 pages. G Phillpot VX121575 inside front cover. Walter Davies Bookseller Warrnambool stamp on title page. Author and preface by Alex McAulay.logarithm tables, warrnambool, walter davies bookseller warrnambool, alex mcaulay.

Selection of 21 various education books that were used by State, Technical & High Schools during the 1950's & 1960'sstate school, primary school, technical school, high school, secondary college

The steam engine indicator, or dynamometer, is an instrument used on a steam engine (such as that of a vessel or train) to measure and record the change in the pressures of the engine’s cylinders during their operating cycle. The engineer would use it to identify problems or defects such as bad valve settings or constricted steam pipes. It could indicate the difference in efficiency caused by adjustments made to the engine, being able to instantly measure the variation of pressure from the engine stroke at any given time. This force of power would be registered by a pencil, fitted to the adjustable arm, which would trace a line on paper wound around the cylinder. The recorded information could be used in conjunction with mathematical tables. This particular instrument was made by T.S. Mc Innes, one of the better manufacturers of engine indicators. Mc Innes engine indicators were still being used in the mid 1900’s. This specific instrument was used by Mark Forsythe of North Berwial, Scotland and late of Ararat, Victoria when he was chief engineer on the “SS Talawena” in 1892. The Port of Warrnambool, in Victoria, harboured steam ships that carried both passengers and cargo along the south west coast in the late 1800’s and into the 1900’s. The engineer of a steam ship was responsible for reaching and maintaining the optimum level of steam energy to serve the locomotion and efficiency of the steam ship. The engineer would use a steam engine indicator to measure and record information to achieve this purpose. Engine Dynamometer or Steam Engine Indicator in square, fitted oak case. This brass instrument is used to measure and record steam pressure for setting up and adjusting valves on a steam engine. It has an oscillating recording drum with vertical, silver clip attached for holding paper in place around the drum. The drum oscillates left to right. There is a pulley attached to a length of cord, which is attached to the drum. Beside the drum is a fine metal arm, vertically adjustable, small hole in the end to hold a pencil. Inscription stamped into bracket of the arm. The engine indicator is mounted on a hinged side of the case that swings out ready for use. Attached chains prevent the side from opening past vertical. There is storage for other accessories and an empty compartment in the base (where a scale or ruler may have been located). The case has a collapsible wooden handle, brass hinges and two brass, hook-shaped catches. There is a code stamped inside the lid. It contains a brass, ‘T’ shaped steam-cock (or stop cock) with two open ends made of metal pipe with different sized threads. (Turning the handle on top opens and closes the space in the pipe and would close off the flow of steam from one end to the other.) Also inside the case are three different spiral springs, each with a threaded nut on the end that has a threaded hole inside it. Used by Mr Mark Forsythe when chief engineer on the SS Talawena in 1892 “T.S. MC INNES PATENT” and “522 _ _” (last 2 digits are unreadable) pressed into the arm of the brass indicator. “[ ] X ’ stamped inside the lid of the case. The 3 springs all have a number stamped into them: (1) “32” and “12” (2) “12” and “16” [above] “12” (3) “64” and “150” Card that came with instrument “This instrument was used by Mark Forsythe of North Berwial Scotland and late of Ararat, Victoria when chief engineer on the SS Talawena in 1892" dynamometer, steam engine indicator, t.s. mcinnes, glasgow, dobbie mcinnes, port of warrnambool, warrnambool, flagstaff hill, flagstaff hill maritime museum, flagstaff hill maritime village, maritime museum, shipwreck coast, great ocean road

Exercise or Mapping book - Australian Mapping book, yellow cover with mathematical tables on the rear, plain paper, 64 pages holding tickets collected by Keith Stodden. Titled "Tickets 3". Tickets have been positioned using stamp hinges. Pages 1 - 10 - Misc., tickets, airlines, buses, tours and entry - NZ and Australia 11 - Painted tram and Neighbourhood 12 - 17 - ditto, travel cards, theatre and MTA single journey 18 - 21 - Misc. tickets, Canada, 22 - 24 - VLine, NSW, 25 - 34 - Theatre, Transporting Art, VLine Parcels, MMTB and Vic passes, Bendigo, St Kilda Line rail, airlines 35 - 36 - Misc. including Pennyroyal, Tasmania. 37 - Airline, ETRB, Skybus 38 - Theatre 39 - 42 - Airline, Whyalla, Theatre, Travelcard 43 - 44 - Theatre, bus, rail and Sydney 45 - 46 - Neighbourhood, coaches, MTA Travelcard, theatre 47 - 51 - TMSV, theatre, rail Neighbourhood 52 - Ansett, Skybus 53 - 57 - scratch tickets, 58 - 59 - theatre 60 - 61 - Sydney, CityRail, 62 - 64 - Neighbourhood, The Met, short trip and Transporting Arttrams, tramways, tickets, the met, mmtb, adelaide, sec, tmsv, sydney, buses

Exercise or Mapping book - Australian Mapping book, decorative cover with mathematical tables on the rear, plain paper, 48 pages holding tickets collected by Keith Stodden. Titled "Tickets 2". Tickets have been positioned using stamp hinges. Pages 1 - Sydney 2 - 5 - mixed VR Bus, MMTB, railway tours, National Trust, and other admission tickets 6 - 8 - Brisbane 9 - BTMS, TAA 10 - TMSV, Sydney 11 - MMTB 12 - Sandhurst Town, National Trust, mixed admission 13 - Sydney 14 - MMTB Bus 15 - Adelaide 16 - 19 - Brisbane 20 - 21- Melbourne Rail, 22 - Melbourne Pageant 23 - 24 - Melbourne Rail and Tram - Travel cards 25 - 26 - Auckland, MOTAT 27 - 28 - Travelcards, Ballarat, Bendigo, Perth, MMTB Swimming ticket 29 - Melbourne rail 30 - Ansett bus, rail and MTT Perth 31 - 32 - Rail travel cards 33 - CRB Westgate bridge toll, Neighbourhood tickets 34 - ARHS ACT, Westgate bridge toll vouchers, 35 - 37 - MMTB, Rail travel cards, ACT bus 38 - Muni, and Travelcard 39 - 40 - Rail, 41 - 42 - travel cards, ARHS ACT 43 - 44 - Travelcards, Santa tram Bendigo 45 - blank 46 - VicRail country ticket, Ansett boarding pass 47 - Levers coachlines.trams, tramways, tickets, the met, mmtb, adelaide, sec, tmsv, sydney, buses

This book, ‘The Practical Measurer’, by Alexander Peddie, is subtitled ‘Tradesman and Wood Merchant’s Assistant’. It is a tradesman’s guide to measuring and contains many tables of measurement. The inscription in the front of the book shows that it belonged to Thomas Osborne and that he obtained it from D. McColl who is identified in the inscription as the Chief Engineer of the steam ship, ‘Julia Percy’. There is a record of a Donald McColl owning the vessel ‘Mimmie Dyke’ and sailing it to Mauritius in 1856 and there is also a record of the death of a Donald McColl in 1880 so these two facts may refer to the D.McColl mentioned by Thomas Osborne (especially as he refers to him as ‘poor old Mr D. McColl’). Thomas Hamilton Osborne was born in Port Fairy in 1851. He had a lifelong interest in ships and in Warrnambool was the Secretary and then Manager of the Western Steam Navigation Company for 16 years. Osborne wrote many articles with nautical themes using the nom-de-plume of ‘Sliding Gunter’ and had a great love of, and interest in, the ship, ‘Julia Percy’ and when he died in 1902 his body was put on board the ‘Julia Percy’ and he was buried at sea. The ‘Julia Percy’ (built 1876) was a well-known steamship on the western Victorian coast for many years. Later it plied the Queensland coast, saw service in West Australian waters, was renamed the ‘Leeuin’ and was used as a coal hulk until it was scuttled in 1935. The signature in the book of T. Hyland may indicate that he donated the book to the Warrnambool and District Historical Society. This book is of prime importance because:- 1. As a book printed in 1863 it is of antiquarian interest. 2. The connection with Thomas Osborne is of key interest as he was a notable figure in Warrnambool’s 19th century history, especially in maritime circles. 3. The connection with the ship, ‘Julia Percy’, is of particular interest as it was a prominent ship in Warrnambool’s maritime history. This is a hard cover book of 448 pages with brown and gold leather binding on the spine and cover edges and a brown and tan mottled pattern cover. The book has a Preface, a Contents page, information on how to measure all types of solid figures and how to measure work involved in the various trades – masons, carpenters, painters, glaziers, plumbers etc. It also has two Appendices with information on the measurement of sawn timber. The text has many tables and diagrams. The first page has a handwritten inscription in black ink and the back pages have some mathematical calculations written in pencil and a mathematical problem with its solution written in ink. Handwritten: ‘T. P. Hyland’ Stamped: ‘T.H.Osborne’ Typed label: ‘Mr T. H. Osborne, Warrnambool’ Handwritten: ‘T.H. Osborne, Warrnamool, Australia, given to me by poor old Mr D. McColl, Chf. Engineer, Julia Percy S.S., 1888’ thomas osborne, history of warrnambool, maritime history of victoria, ‘julia percy’ steamship

Book for training of Cadet Pilots. Loose leaf pages secured by black lacing. Includes Mathematics, Physics, RAAF Badges, Aircraft, Ships, Log Tables.manuals, cadets raaf

As the previous owner, a marine engineer and donor of this textbook was based in Liverpool for some years it is possible that he may have studied for the Ministry of shipping exam at the former College of Marine Engineers, Liverpool in the early - mid 20th C. Mariner Duncan had a particular regard for the Mission to Seafarers. A plate for display on a commissioned new table at the MTSV chapel acknowledges his bequest and the material donated. Collectively the G W Duncan material includes: photographs, professional data memorabilia and written and commercially printed resources. The memorabilia relates to his career at sea and in particular the role of an engineer, including a handwritten manual of notes and references relating to the mechanical and engineering aspects and areas of responsibility for maintenance. Text book with dull grey brown cover with black printing and simple line border.See image attachedmarine engineer training, engineers, mathematics, ministry of shipping, liverpool, exams, mariners, george winfield duncan (1922-2017), ship engineer, s.s. athenic

The owner of this textbook, Cornelius Cooke Reed, was an early settler. He was born in England and lived and died at Portland, Victoria (ca. 1880 - 23 June 1876). The Hamilton Spectator printed his Obituary: "The death of Mr. Cornelius C. Reed, a very old resident of Portland, is reported." The Portland Guardian reported on 23 December 1857, that "Cornelius C. Reed obtained a Hawker's license for the year 1868". The book was used with gauging tools to calculate the quantity of liquid in a cask or barrel. The calculation could then be used to charge a fee or tax. The book would have been used in the 18th or 19th centuries, when Customs and Tariffs were calculated manually.This book is important for its use in the centuries before modern technology. It was used to calculate the quantity of liquid in a container such as a cask or barrel. It would have been used to work out alcohol taxes or charges for freight and cartage. It represents an early mathematical reference, which was later replaced by slide rules, calculators and computers. It is significant as a rare example of an early textbook used for ullaging.Book Title: Explanation and Use of The Tables for Measurement of Casks Brown, hardcover book with gold embossed lines on the spine and dark tape on the front cover beside the spine. Handwritten inscriptions are inside the covers and throughout the book. The book is well-worn and has several repairs. Cornelius Cooke Reed of Portland, Victoria, was the owner. It is well-worn and has been repaired.Handwritten signatures: "Cornelius Cooke Reed" "C. C. Reed" Handwritten location: "Portland"flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, maritime-museum, shipwreck-coast, explanation and use of the tables for measurement of casks, book, casks, measurement of casks, text book, reference book, tables of measurement, cargo, customs tax, flagstaff hill maritime museum and village, cornelius cook reed, ullage, cornelius cooke reed', hawker's licence, portland, portland resident, portland south cemetery

In 1911 R. Maddern was President of the Ballarat School of Mines. Contents of this booklet are: Asssociateship, Calendar, Certificate Courses, Departmental Regulations, Discipline, Discipline Board, Examination Results, Fees, Full Certificates Issued, General Regulations, Introduction, Junior Technical School, Officer Bearers, Professors and Lecturers, Subjects of Instruction - Department of Chemistry and Metallurgy, Geological Department, Engineering Department, Electrical Engineering Department, Department of Mathematics and Physics, Practical, Plane and Solid Geometry, Photography, Subscriptions and Donations 1910. Plan of Buildings and Grounds Engineers with qualifications from the Ballarat School of Mines were sought by mines throughout the world. Blue soft covered book of 64 pages titled the Ballarat School of Mines Calendar. The book includes images of the Engineering Room, the Maddern Roasting Furnace, Museum, Junior Chemical Laboratory, Plan of Buildings and Ground, Chemical Laboratory, Concentration Floor, Linkenbach Table, Engineering Laboratory, Experimental Steam Engine, Chemical Lecture Room, Physics Instruction Room, Newtonian Telescopy, Ballarat Observatory, Instructor's Laoratory, Wilfrey Table, Chlorination plant, Cyanide House and R. Maddern. ballarat school of mines, scientific equipment, engineering, classroom, desks, gas lighting, calendar, r. maddern, j. m. bickett, w. h. middleton, j. d. woolcott, w. nixon, daniel. walker, fred j. martell, professor a. mica smith, hubert r. murphy, charles a. deane, arthur garrard, professor t. s. hart, professor a. d. gilchrist, a. e. c. kerr, j. brittain, e. j. a. mcconnon, john m. sutherland, bertram whitington, h. j. hall, e. gutheil, charles campbell, t. williams, d. e. mullins, sir redmond barry, judge rogers, r. m. sergeant, thomas bath, andrew anderson, general regulations, discipline, discipline board, associateship and final certificates, mining engineering, metallurgy, geology, electrical engineering, certificate courses, junior technical school, fees, subjects of instruction, chemistry, geological department, engineering department, electrical engineering department, department of mathematics and physics, practical, plane and solid geometry, photography, full certificates issued, supplementary examination results - may 1910, supplementary examination results - april 1908, subscriptions and donations 1910

The Ballarat School of Mines Calendar and Annual Report 1901. Associateship and Final Certificates, Calendar for 1903, Discipline, Discipline Board, Fees, Full Certificates Issued, General Regulations, Honorary Correspondents, Office Bearers, President's Annual Report, Professors and Lecturers, Results of Examinations Conducted by Education Department 1901, Statistics - Students Attending Lectures, Subscriptions and Donations, Subjects Included in Regulations Technical Schools, Subjects of Instruction - Department of Chemistry and Metallurgy, Geological Department, Engineering Department, Electrical Department, Department of Mathematics and Physics, Practical, Plane and Solid Geometry, Photography, Syllabus for Assaying and Metallurgy, Time Table. Includes several photographs.Green soft covered book of 96 pages, it includes the 1901 Annual Report of the Ballarat School of Mines. Images include: Senior Members of Staff and the Linkenbach Tableballarat school of mines, senior members of staff, linkenbach table, linkenbach, mica smith, dawson, hart, usher, annual report, andrew anderson, james m. bickett, r. t. vale, john warrington rogers, james millhinch bickett, james oddie, henry cuthbert, r. g. middleton, charles kent, robert lambert, andrew berry, fred j. martell, thomas s. hart, g. stephen hart, g. j. dawbarn, engineering department, a. e. c. kerr, lewis a. westcott, edgar a. mcconnon, laboratory assistant, john m. sutherland, electrical department, kerr grant, mathematics and physics, henry j. hall, charles e. campbell, photography

The Ballarat School of Mines was the first Technical School on Australia..1) Ballarat School of Mines Annual Report .2) Ballarat School of Mines calendar The Ballarat School of Mines Calendar and Annual Report 1896. Associateship of The School, Calendar for 1896, Certificates Granted by Education Department 1894, Certificates Issued by The School 1895, Certificates Issued Prior to 1895, Certificates Issued by Education Department 1895, Examiners, Examination Fees, Fees, Honorary Correspondents, Life Governors, Meteorological Observations, Number of Students attended The School, Office Bearers, Professors and Lecturers, Report of the Superintendent of Laboratories, Report of the Professor of Mineralogy, Geology and Botany, Report of the Professor of Engineering, Report of the Lecturer on Mathematics, Report of the Instructor in Engineering Drawing, Report of the Lecturer on Electricity, Report of the Teacher of Drawing, Report of the Lecturer in Veterinary Science, Statement of Receipts and Expenditure for year 1895, Statistics - Student attending Lectures, Subscriptions and Donations, Subjects Included in Regulations Technical Schools, Time Tableballarat school of mines, examiners, examination fees, fees, honorary correspondents, life governors, meteorological observations, number of students attended the school, office bearers, professors and lecturers, report of the superintendent of laboratories, report of the professor of mineralogy, geology and botany, report of the professor of engineering, report of the lecturer on mathematics, report of the instructor in engineering drawing, report of the lecturer on electricity, report of the teacher of drawing, report of the lecturer in veterinary science, statement of receipts and expenditure for year 1895, statistics - student attending lectures, subscriptions and donations, subjects included in regulations technical schools, time table, annual report, calendar, andrew anderson j.p. - president, hon. r. t. vale - vice president, r. denham pinnock - vice president, the hon. sir w. j. clarke - trustee, the hon. john warrington rogers - trustee, the right reverend samuel thornton - trustee, andrew anderson - trustee, james millhinch - trustee, james oddie - trustee, the hon. henry cuthbert - honorary solicitor, r. g. middleton - honorary treasurer, charles kent - auditor, fred. j. martell - director and registrar, professor alf. mica smith - chemistry, metallurgy, natural philosophy, professor purdie - geology, mineralogy, principles of mining, professor g. j. dawbarn - mine and land surveying, mining mechanics, hydraulics, civil engineering, applied mechanics, j. rowe - practical mining, w. huey steele - electrical technology, electricity and magnetism, d. walker - chemistry and natural philosophy, w. e. bennett - mathematics, henry j. hall - freehand and perspective drawing, a. e. c. kerr - mechanical drawing (machine construction and design), j. f. usher - paleontology, zoology, materia medica, professor purdie - botany, george clegg - building construction, l. hart - photography, h. g. a. brown - carpentry, r. e. weir - veterinary science, daniel walker, henry cuthbert, james millhinch, jams oddie, j.f. usher

In 1908-9 Andrew Anderson was President of the Ballarat School of Mines. Contents of this booklet are: Asssociatesjip Final Certificates, Calendar, Classification of Subjects, Departmental Regulations, Discipline, Discipline Board, Examination Results Nov-Dec 1907, Fees, Full Certificates Issued, General Regulations, Introduction, Notices, Officer Bearers, Professors and Lecturers, Subjects of Instruction - Department of Chemistry and Metallurgy, Geological Department, Engineering Department, Electrical Engineering Department, Department of Mathematics and Physics, Practical, Plane and Solid Geometry, Photography, Subscriptions and Donations 1907, Technical Art and Trade Schools, Time Table, Photos of Buildings and GroundsPale blue covered 74 page booklet relating to the Ballarat School of Mines in the year 1908-9. ballarat school of mines, andrew anderson, j. m. bickett, hon. r. t. vale, james millhinch bickett, james oddie, r. maddern, charles kent, robert lambert, fred j. martell, professor a. mica smith, daniel walker, hubert r. murphy, charles a. deane, arthur garrard, t. s. hart, a. d. gilchrist, a. e. c. kerr, j. brittain, e. j. a. mcconnon, john m. sutherland, bertram whitington, h. j. hall, j. f. usher, charles e. campbell, sir roderick murchison, sir redmond barry, judge rogers, r. m. sergeant, thomas bath, dr james stewart, general regulations, discipline, discipline board, associateship and final certificates, mining engineering, metullurgy, geology, electrical engineering, plans of buildings and grounds, certificate courses, departmental regulations respecting order of study and examinations in chemistry, assaying and metallurgy, fees, time table 1908, department of chemistry and metullurgy, chemistry, metallurgy, assaying, geological department, mining, engineering department, electrical engineering department, department of mathematics and physics, practical, plane and solid geometry, photography, full certificates issued, examination results nov-dec 1907, subscriptions and donations 1907, technical, art and trade schools, full courses, classification of subjects and fees per term

Hardcovered books (see photo for more details)see photoeducation, school, mathematics, arithmetic, textbooks

The Fuller cylindrical slide rule, is a cylindrical slide rule with a helical main scale taking 50 turns around the cylinder. This creates an instrument of considerable precision – it is equivalent to a traditional slide rule 25.40 metres (1,000 inches) long. It was invented in 1878 by George Fuller, professor of engineering at Queen's University Belfast, and despite its size and price it remained on the market for nearly a century because it outperformed nearly all other slide rules. He patented it in Britain in 1878, described it in a journal in 1879 and in that year he also patented it the United States, depositing a patent model. As with other slide rules, the Fuller is limited to calculations based on multiplication and division with additional scales allowing for trigonometrical and exponential functions. The mechanical calculators produced in the same era were generally restricted to addition and subtraction with only advanced versions, like the Arithmometer, able to multiply and divide. Even these advanced machines could not perform trigonometry or exponentiation and they were bigger, heavier and much more expensive than the Fuller. In the mid-twentieth century the handheld Curta mechanical calculator became available which also competed in convenience and price. However, for scientific calculations the Fuller remained viable until 1973 when it was made obsolete by the HP-35 handheld scientific electronic calculator. Fuller's calculators were manufactured by the scientific instrument maker W.F. Stanley & Co. of London who made nearly 14,000 between 1878 and 1973.Like all slide rules, logarithmic scales are used to facilitate calculations more quickly and efficiently. The spiral logarithmic scale greatly increases the precision and computing power of the slide rule. In addition, its tables provide useful information to its users, most likely engineers. Its remarkable length permitted a high level of precision in calculations; calculations could be made to 4 or 5 significant digitsThe fuller calculator, is a cylindrical slide rule with a helical main scale taking 50 turns around the cylinder. There is a papier-mache cylinder fastened to a mahogany handle. A second papier-mache cylinder is a slide fit over the first. Both cylinders are covered in paper varnished with shellac. A brass pointer with an engraved index marker at its tip is attached to the handle and a second brass pointer is attached to the top cap. On the outer cylinder is a helical logarithmic scale 500" (41'8" or about 12.5 m) in length. This cylinder can be slid and rotated upon the inner one and hence with the correct sequence of movements, multiplications and divisions can be made and the answers read off the two pointers which project over the cylindrical scale.FULLER CALCULATOR inscribed on brass pointerscientific instrument, mathematics, calculating