Unsigned and undated, Blurry carbon print letter with printed letterhead Stevenson Bros., Motor Service Station, Hargreaves Street, Bendigo (next to Crown Hotel). The writer asks for a report on the scalebuoy in relation to the running of the motor, heat, oil, carbon and petrol economy since the purchase of the scalebuoy(s).sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, fargo trucks, de soto cars, stevenson bros, crown hotel

Copy of a letter from D. C. House, dated 28th February, 1937, to H. Abbott, Esq. He was adding particulars of his Fargo Parlour Coach to his report on his President 8 Studebaker motor car. He mentions the Fargo Parlour Coach-16 Passenger-3 ton 8 cwt.-tare 25 H. P. He mentions the benefits of the scalebuoy on oil and fuel consumption and relates the distances covered daily and the stops and starts.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, stevenson bros, h abbott, crown hotel, d c house

Three copies of a Letter, dated November 5, 1936, from Sister M. Monica to Sister Mary Gonzaga, relating to her the benefits of using scalebuoys in the water to the boilers and hot water systems. It had removed scale from the pipes. The only problem they had was the scale that had fallen off blocking the traps and that soon stopped. Scalebuoys were going to be installed in the cold water system as soon as there was more money to do it.Letterhead -St Josephs Hospital Phoenix Arizonasciences, instruments - general, scalebuoy, bill ashman collection - correspondence, st joseph's hospital arizona, sister mary gonzaga, mater misericordiae hospital auckland, mr herzog, st mary's hospital san francisco, mr abbott, sister mary monica

Seven copies of a letter from W. W. Eden, Mgr., F. W. Woolworth Co., dated November 12,1937 to Paul A. Douden & Co. He mentions that since installing the Scalebuoys over two years ago they have had no trouble with scale in the water systems where the Scale buoys were installed and they are contemplating installing in the water they used for cooling their natural gas engines. Since installing the scalebuoys there has been considerable savings on soap powders.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, f w woolworth co, paul a douden & co, w w eden

Five copies of a letter from ? Smith, Engineer Way & Structures, of the Kansas City Public Service Company to Paul A. Douden & Co., dated November 15, 1937. He tells of their experiences with Scalebuoys. He mentions reduction of scale and about a 30% reduction in the consumption of soap and the chemicals used in the water for cleaning purposes. In the bottom left corner is a small picture of a bus and a tram.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, kansas city public service company, paul a douden & co, ? smith

Four letters from Helen Tangney-Springer, Manager of the Wahkonsa Hotel, Fort Dodge, Iowa to Paul A. Douden & Company, dated November 13, 1937. Mentioned in the letter is the use of Scale Buoys in the coffee urns and the hot water tank and the difference in the cleaning of them.Letterhead - Tangney Hotelssciences, instruments - general, scalebuoy, bill ashman collection - correspondence, e c tangney, helen tangney, h h mueller, e j tangney, tangney hotels, wahkonsa hotel, muscatine hotel, arlington hotel, burke hotel, paul a douden & company, helen tangney-springer

Copy of a letter, dated 20 February, 1937, to Stephens Garage from Gordon Gray. He details the operation of his car after the installation of Scale Buoy. He mentions Water, Oil and petrol consumption. Also mentioned is carbon and exhaust. He also mentions that he used Super Plume Petrol and since the installation of 'Scalebuoy' he then used Plume Petrol.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, stephens garage, super plume petrol, plume petrol, gordon gray

Copy of a letter dated 25 January, 1937, from Frank A. Stevenson to R. H. S. Abbott. Letter details the changes in the colour of the water from the diesel engines on the 180 Gold Mining Coy., Bendigo, after the Scale Buoys were installed.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, stevenson bros. motor service station, r h s abbott, crown hotel, 180 gold mining coy, frank a stevenson

Five copies of a letter to Paul A. Douden & Company from W. E. Humphrey, Chief Engineer, dated November 12, 1937. Paper has printed letterhead with a photo of the rubber company at the top. Writer mentions that they are pleased with the work of the Scale Buoys and that there is no scale in the pipes. Previously they had to replace piping regularly.sciences, instruments - general, scalebuoy, bill ashman collection - pennsylvania rubber company, paul a douden & company, w e humphrey

Letter from McPherson's Limited to Messrs Bendigo Electronic Co. of Australia, dated 15 November,1950. Letter is from John Byrt, Asst. Chemist for Attention Mr. Stevenson. Cover letter states they have enclosed copies of Report No. 17355 covering 'Dezincification of Brass Wire in 'Scalebuoy' Water'. Two pieces of wire were analized. In the discussion the brittleness had resulted from dezincification,which was known to be a common type of corrosion of that material. It was recommended that different wire be used. Four alloys were recommended: Cupro-nickel, Aluminium brass, Arsenical brass and Admiralty brass. Two copies of the report.sciences, instruments - general, scalebuoy, bill ashman collection, mcpherson's limited, messrs bendigo electronic co of australia, mr stevenson, j byrt

Paper headed Geo. Pizzey & Son Ltd. Poms Fur Trimming. Dated August 7 Thursday 1947. Campbell's Linen Carpet Sewing thread. All printed at the top of page. Hand written is Sample taken from Walshes Machine 1/8'' brass wire from 6 buoy frame 12 buoys. From the check piece and the sample there was a loss of 35.58% of the weight.sciences, instruments - general, scalebuoy, bill ashman collection, geo pizzey & son ltd, poms fur trimming, campbell's linen carpet sewing thread, walshes

Letter dated November 12, 1937 to Paul A. Douden & Co. from W. W. Eden, Mgr. F. W. Woolworth Co. W. W. Eden mentions that since installing Scale Buoys over two years age we have had no trouble from scale or lime deposits at all in our system, except for the water used for cooling the natural gas engines. This water didn't come in contact with the Scale Buoys and they contemplated additional units to treat it. They also had no scale in the coffee makers and dish washers.sciences, instruments - general, scalebuoy, bill ashman collection, f w woolworth co, paul a douden & co, scale buoys, w w eden

Eleven page article titled Water Softening in the Boiler by the 'Alfloc' System. This is an internal method of conditioning boiler feed water and the use of coagulants designed to prevent scale formation in the boiler and accessory plant, to reduce corrosion to a minimum, and further to provide for those conditions in the boiler water which from present experience are believed to prevent the occurrence of caustic ombrittlement. Different chemicals were used to suit different types of water in different areas. Items discussed are: Summary, Introduction, External treatment, Internal Treatment, General Principles of the 'Alfloc' Internal Treatment, Precipitation of the Scale-forming Salts, Temporary Hardness, Permanent Hardness, Conditioning of the Precipitate - Floc Formation, Efficient Control of the Concentration of both Dissolved and Suspended Solids by Blowdown, Prevention of Corrosion, Testing and Control, The 'Alfloc' Reagents for Internal Treatment, 'Alfloc' Liquors, 'Alfloc' Briquettes, Alfloc' Powders, Methods of Application, Liquors - Stationary boilers and Locomotive boilers, Briquettes - Stationary boilers and Locomotive boilers, Powders, Blowdown, Sludge, Caustic Embrittlement, Control of 'Alfloc' System, Cost and Economies of 'Alfloc' Internal Treatment and 'Alfloc' Water Treatment Service. Listed on page 11 are ICIANZ Sales Offices the Australian States. Between pages 7 and 8 is a page of diagrams. They are: Showing method of feeding liquors to the feed tank of boilers for 'Alfloc' internal treatment, typical arrangement of pressure vessel and typical arrangement of 'Alfloc' by-pass feeder.sciences, instruments - general, scalebuoy, bill ashman collection, alfloc system, imperial chemical industries limited alkali division, alfloc liquors, alfloc briquettes, alfloc powders, imperial chemical industries of australia and new zealand limited, elder smith & co limited, chemical & textile agencies pty ltd

Newspaper article from the Melbourne Truth, dated Saturday, September 4, 1943. Front page article about George Frederick Heathcote Hanson, patents attorney, of Gipps Street, East Melbourne. Hanson had been reported missing after boarding a train to Sydney. He body was later found under briar bushes at Young. The Coroner's finding was that death had resulted from exposure, after taking the phenobarbitone. He believed he was not making a success of his business, and because he was unable to give his wife all the things he thought she deserved. Also printed are copies of letters he had written to his brother and his wife. (This was his second wife, his first having died four years earlier.)sciences, instruments - general, scalebuoy, bill ashman collection - truth, george frederick heathcote hanson, mr c m western, harold herbert hanson, estmere hanson, patents office, det windsor, commercial hotel young, dr george milroy whish, det albert edward windsor, sgt w f searson, john edwin chaplin, mr hayes, isobel hanson, ada hanson

Leaflet from the Bendigo Electronic Company of Australia Pty. Ltd. Titled 'Directions for the use of 'The Scalebuoy hand Shaker' for Bath, Basin or Drinking Vessel. Leaflet gives instructions for the use of the Scalebuoy by Frank A. Stevenson. On the back are pictures of the hand Shaker Scalebuoy and the Vest Pocket Scalebuoy.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, bendigo electronic company of australia pty ltd, frank a stevenson, the scalebuoy hand shaker

Four copies of a typed letter from ? Bell, Manager of the Union Oil, Soap & Candle Co. Ltd. To Scalebuoys (N. Z.) Ltd., dated 16 February, 1938. Letter refers to Scalebuoy treatment of water for boiler feed. Mentioned is how clean the boiler were of scale and sludge. Letter typed on paper with printed letterhead.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, union oil soap & candle co limited, scalebuoys (n.z.) ltd, ? bell

Two typed copies of a letter from ? Bell, Manager of the Union Oil, Soap & Candle Co. Limited to Scalebuoys (N.Z.) Ltd., dated 7 March, 1938. He mentions that they are so satisfied with the Scalebuoy treatment of the water for Boiler Feed that they want to install another one for a small boiler. He asks to let him know what is required. Letter has printed letterhead.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, union oil soap & candle co limited, scalebuoys (n.z.) ltd, national mutual chambers auckland, bell

Three typed copies of a letter dated 29 June, 1938. Letter is to Scalebuoys (New Zealand) Ltd. From the Manager of The Whangarei Co-op Dairy Company Ltd. Mentioning the improvement in the condition of the two boilers since using the Scalebuoy. Also mentioned that using the treated water gave a better result for washing the five churns than the untreated water.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, whangarei co-operative dairy company, ltd, scalebuoys (new zealand) ltd, babcock

Two typed copies of a letter dated 21 June 1938. Letter is to Mr. W. H. McCorkindale from J. S. Stevenson, Manager of the Maungatapere Co-operative Dairy Co. Ltd. He mentions the condition of the boiler after six months of Scalebuoy Treatment.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, maungatapere co-operative dairy co ltd, w h mccorkindale, scalebuoy's ltd, j s stevenson

Three note pages with some names, addresses and phone numbers.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, ford coy, paul faigl, ron deveraux, alistar mckenzie, john donaldson

Thirty five typed pages pinned in a buff folder. Topics include weight of crop cut using ordinary water and Scalebuoy water, health, Enzymatic Catalyst, Pitfalls for the Unwary, which are provided by the Scalebuoy Effect, Waiuku Horticultural Experiment, Activated Water Molecules, Medicine's most Amazing Mystery, Biophysics, Roman Temple found in London and Enzymatic Processes. Mr. Frank Stevenson written in red ink on the back.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, scalebuoy, m h aldred, w n abbott, auckland research group, pasteur institute, f jacob, mr onassis, peruvian navy, lloyds of london, guillebaud committee, national health service, mr abel-smith, professor titmuss, einstein, pasteur, buchners, scalebuoy effect, waiuku horticultural experiment, mr aldred, prof e baldwin, michaelis, dr eugene h payne, park davis & co, dr t p manson, prof r t cox, the lancet, roman temple, london excavation council, w f grimes, van der lott, mithras, london aquarium, coehn's rule

40 medical samples on blotting paper contained in a black envelope. Names on some of them are: F A Stevenson, H Holland, J Hinds, Gee, West, Priest, Ward and Hall.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, f a stevenson, h holland, j hinds, gee, west, priest, ward, hall

Envelope which contained letters and plans addressed to Bendigo Electronic Coy. Of Aust. Ltd. Non-delivery address McPherson's Ltd. 6-1/2d red stamp marks in top right corner. Cancelled 23SEP57. Return address printed in green.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, bendigo electronic coy of aust ltd, mcpherson's ltd

Seven letters dated between 1/10/1940 and 20/12/40 from F. Gifford of Gifford's Hotel, Mount Gambier, S.A. and Stevenson Bros. and The Bendigo Electronic Co. in reference to installing Scalebuoys in the hot water service at Gifford's Hotel. First letter from F. Gifford has printed letterhead with name, address and facilities in dark blue printing.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, gifford's hotel, stevenson bros, bendigo electronic co, f gifford, d dept

Water Analysis taken 18/3/1940. Blue Lake Supply Mount Gambier, SA. Gifford's Hotel Water Supply connected to this supply. Analysis gives the Grains per Gallon of the different minerals and the degrees of Hardness.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, blue lake supply mount gambier sa, gifford's mt gambier hotel

Two plans of Gifford's Mt Gambier Hotel (one has typed capacities, the other hand written) and one page of typed Particulars of Mr. Gifford's Hotel Boiler for Hot Water.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, gifford's mt gambier hotel

Group of paper pinned together of various experiments. Items include Tail light invention for Defence Dept. 18/9/41, Heat of glass, Refractive Index Tests on Melbourne Tap Water 31/7/42, Research Data, Manufacture of the Buoys 18/1/43, Specifications 1/12/42, List of substances with their Atomic No., Symbol, Atomic Weight, Melting Point and Year of discovery and a hand drawn diagram for an experiment. Bendigo Electronic Company of Australia Pty Ltdsciences, instruments - general, scalebuoy, bill ashman collection - correspondence, bendigo electronic company of australia pty ltd, defence dept, capt slattery, f a stevenson

Undated newspaper cutting titled Interest in Hydroponics. Cutting mentions an experiment by Mr. Frank Stevenson of Bendigo in which he grew flowers in liquid. There was local interest as well as overseas interest.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, interest in hydroponics, frank stevenson, box hill council

Two pages of typed notes titled - Electrically Welded Single Strand Barb Wire. The notes mention the advantages of the single strand electrically welded barb wire over the ordinary twisted barb wire of two strands. Advantages include less weight in the fence and for freight, less stretching, barbs are at fight angles to the wire and rust does not attack the welded barb wire as it is not bent which can cause the galvanising to crack. The welding helps to keep the rust out.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, electrically welded single strand barb wire, university of melbourne

Carbon copy of a typed letter to Mrs Marion Symington, dated 14/12/57. No signature oat the end. Writer mentions that he still runs the Scalebuoy Company, but business has been poor lately. He also mentions people owing money and a trip to Adelaide where he sold £500 there and since. He also mentions the lack of rain and growing plants without soil.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, mrs marion symington, scalebuoy company, hydroponics, prof gericke, california university