Dip circle has much the same elments as in the previous model ( cat. no.81), except the brass cylinder is replaced by a mahogany box with two end windows. Tribrach base is fixed into a wooden sheet ( maybe for ease of carrying in the field).Label: “Nat Phil Lab No. Univ. of Melb” Magnets inscribed “Magnets for dip”

The “Standard Desk Calcumeter” consisting of metal rectangular body with six dials and a reset button. Two legs are used to stand Calcumeter at a convenient angle for manipulation..Engraved on front: “The Standard Desk Calcumeter” On side: “77” “120675” On side: “H.N. Morse Trenton N.J.” On long side: “Pat`d Dec.17`01”

“Loga” circular slide rule with round zipped maroon brown leather case. 87.1 = slide rule. 87.2 = leather case.

Aristo-Scholar VS-2 linear slide rule3Fx18

ARISTO STUDIOLOG ARISTO 0969 linear slide rule (see below in “history of object”“Aristo 0969 Germany”, “Aristo DBGM”

Linear slide rule made of wood with glass slide encased in metal.“W & G Melbourne Australia Model 421”. Inscribed: “W & G”( the local manufacturer)

“FULLER CALCULATOR” : a wooden cylindrical slide rule(92.1) with spiral logarithmic scale 500 inches long. and specially made rectangular box (92.2) and pamphlet (92.3).Engraved on metal of adding machine (92.1): “8462/45” Label on inside of box: “Stanley Trademark Everything for the Engineer Architect and Surveyor in field and drawing office. W.F.Stanley & Co. Ltd, 286 High Holborn London WC1” Stamped on pamphlet: “University of Melbourne Department of Statistics” Label on top box: “display”

Brass cylinder attached to black enamelled iron round stand by knobs. Catalogue article in display case to accompany object. (text in bad state of disrepair) (Addendum: Original text has been photocopied; thus replacement copy is placed with instrument, original confined to file)Engraved on cylinder: “Negretti & Zambra, London Jordans Photographic Sunshine Recorder No. 194”. Label: “Nat. Phil. Lab. Univ. of Melb.”

Brass and black enamelled microscope, circular stage with vernier reading. (Research required: possibly a polarising microscope, for special measurements, perhaps geololgical Probably a”petrological microscope”, from 1890s. See entry 3683 MICROSCOPE - COMPOUND on p MIS97 of MOLLAN, Charles “Irish National Inventory of Historic Scientific Instruments”On base: “J.Swift & Son, London”

100 gram standard calibrated platinum cylindrical weight NPL No A’39 / 60549. Stored in varnished wooden cylindrical box with black lining and screw on lid. (certificate not located) 97.1 = box 97.2 = lid of box 97.3 = weightOn weight: “100 GRM” Carved on base of box: “41142”. On top of box: “NPL.A.’39 / 60549”

Glass panel with “Natural Philosophy School” etched on surface. Taken from east door of Old Physics Building (1973)University Motto: “Cresam Posteria Laude”. followed by “Natural Philosophy School”

Black and white photograph of 35 MeV betatron donut. Showing electron exit beam “pancake” deflector coils

Set of 13 tuning forks tuned to each semitone of the musical scale, based on C4=256 Hertz (A4=435 Hertz); each with spherical brass knob on end; all enclosed in a hinged wooden case. Wooden clamp for forks included in the box. Performance certificate available. 53.1=box 53.2=wooden forks clamp 53.3-53-15 =13 tuning forks.Engraved plaque inside box: International Stimmunt ut 3-517,304v? 1a 3-870v?; C1-258,652 Schwingungen a1-435 Schwingungen. Inscribed on top of box Max Kohl Chemnitz 1/5 Label on side of box:Tuning forks. On each tuning fork size is identified as MK inscribed.

2 slides (54.1 & 54.2) wrapped in paper and stored in a small hinged metal chemist’s pill box (54.3). ;Also an unidentified 8.5 cm (graphite?) stick (54.4) Slide 54.1 is wrapped in paper and identified as “very precious”. On the slide is printed: ONE INCH divided into hundredths. In ink: “Dup. Beck. Retain.” Next: 1-14 in. cover glass. Then printed: Ruled on glass. H.J. Grayson. No. 2 Slide 54.2 is also wrapped in paper. Ruling can be seen under 3/4 iin. cover glass. Carries labels: “760 or 1/60 xxxx” and “60,000 # good”. On the wrapping paper: “Grayson Test Ruling, given to me by the late Mr W Stone.” Signed: W.M. Holmes, 18.9.50 In differnet penmanship: “Labelled 60,000 gtooves #. White sticker with red bars. Placed in display cabinet 13.8.71 J J McNeill.(All this transcription by EGM)Label On 54.1: “One inc divide into hundredths Dup Beck Retain. Ruled on glass H.J. Grayson No.2” Labels on 54.2: “60”, “60,000# good”. Label on box (54.3): “Grayson Test Rulings 60,000 from W.A. Holmes, Balmoral Ave, Kew”. On metal stick (54.5): “S.F.342” (Prior description by Anna)

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of Fred Caldwell looking through instrument.In ink on lower left hand corner : “12”

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of V.D. Hopper in experimental mode (with stop watch and potentiometer). In ink on lower left hand corner : “13”

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of J.F.G. Darby (Left) & W.B. Lasich (Right) sighting on apparatus(??).In ink on lower left hand corner : “11”.

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of L.H. Martin with ?? apparatus (possibly gun sight).In ink on lower left hand corner : “10”.

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of “Peter Law (Left) & A.C. Goodwin (Right)”. Involved with optical flats in aluminising apparatus.In ink on lower left hand corner : “9”.

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of “Peter Law (Left) & A.C. Goodwin (Right)”. Involved with optical flats in aluminising apparatus.In ink on lower left hand corner : “8”.

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of Geo Armitage testing a monocular (or part of the binocular testing program?). Same apparatus as in no 134. In ink on lower left hand corner : “7”.

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of Henri Rathgeber operating Michelson Interferometer.In ink on lower left hand corner : “6”.

Olive green enamelled stereoscope enclosed in olive green wooden hinged box. Two test stereoscopic pictures of a rhino also kept in box. A wooden oddment (10 cm) is also enclosed.Engraved in white on stereoscope: “DC-1940 Serial No. 32” Label on front of box: “stereoscope”

Student Potentiometer (Type D-73-E) set in wooden box with lid. Black control panel with various dials:two for VOLTS & MILLI-VOLTS; others for galvanometer sensitivity, battery rheostats, etc. 24.1 = potentiometer 24.2 = lidPlaque on front of box: “J.L.William Scientific Instruments Serial No. 1480. Type D-73-E Melbourne Australia”. Inscribed on control panel: “J.L.William Scientific Instruments Melbourne Australia. Various control panel markings.

Planimeter consisting of brass disc and measuring instrument made of white disc and attached bar. To measure area up to about the size of one A4 page. The instrument is stored in a black hinged box with purple velvet lining and small metal catches. Instruments instructions are attached to a label on the inside of the case. A small key is attached to the case lid by string. (23.1 = box, 23.2 = brass disc, 23.3 = planimeter)On planimeter (23.3): “G.Coradi Zurich Switzerland No. 3509” On box (23.1): “Nat. Phil. Lab. No. 1199, Gebr Wichmann Berlin”

Copper magnetron with disc-like body has three radiating electrodes each emerging through a copper to glass tube. Two of these are arranged on one side(= filament leads) and the other larger tube (collector/anode) is arranged diametrically opposite.Handwriting on top “?A4 A98/4.9%”

3 cm dia oxidised copper cylinder held in construction jig (consisting of two flat square steel slabs clamped with bolts). Three copper through glass electrodes radiate out from the magnetron cylinder. Two of these tubes are small and adjacent to each other (filament leads).

Copper cylinder to which radial copper vanes are brazed defining twelve resonant cavities. Central cylindrical cavity contains white oxide coated cathode sandwiched between two stainless steel disks, one at each end. Three electrodes pass through glass-copper seals, the copper tubes are attached radially to the outside of the cylinder.

Chrome cylindrical neutron counter. Length approx. 1 m.“H7100 - 700246” painted on inside end of tube.