Black and white photograph of cyclotron equipment displayed on bench. Stored in white envelope entitled “”Cyclotron - Photographs around the vacuum chamber from J.L. Rouse (Feb 1991)” Similiar to 247

Black and white photograph of cyclotron equipment displayed on bench. Stored in white envelope entitled “”Cyclotron - Photographs around the vacuum chamber from J.L. Rouse (Feb 1991)” Similiar to 246, 248-250

Black and white photograph of cyclotron equipment displayed on bench. Stored in white envelope entitled “”Cyclotron - Photographs around the vacuum chamber from J.L. Rouse (Feb 1991)” Similiar to 246-248, 250

Black and white photograph of cyclotron equipment displayed on bench. Stored in white envelope entitled “”Cyclotron - Photographs around the vacuum chamber from J.L. Rouse (Feb 1991)” Similiar to 246-249

Stapled thin leaflet cover entitled “Natural Philosophy Laboratory University of Melbourne. Inspection of New Wing and Exhibition of Physical Apparatus and Experiments. Friday, August 25th, 1939 8pm to 10pm”. 15 pages in leaflet.

Small black and white photo showing equipment comprising of a large oblong ball on top of column.Handwritten on back in pencil: “Van de Graaff Old Physic Building (Natural Philosophy)”

Black and white portrait of T.H. Laby (at approximately 50 years?)

Black and white portrait of young man (?possibly T.H. Laby).

Black and white photo of Hercus and Osborne in laboratory.Handwritten in pencil on back of photo: “Duplicate L to R Hercus Osborne Laby”

Black and white photo of “J” apparatus in laboratory.

Black and white photo showing part of “J” apparatus.

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of E.R.Johnson testing fused sandwiched plate glass in a polarimeter. N.B. As at time of writing it is not certain that the “man” pictured in nos. 147 and 149 is the same individual as pictured in no 140. (EGM. 11/11/99)On back of photo in pencil: “No. 20 E.R. Johnson”

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of Gus. Ampt and Professor Hartung examining experimental pots of optical glass; the pots have been halved in order to make the examination..In ink on lower left hand corner : “37”.

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of Professor Hartung trmoving experimental pot of optical glass from furnace.In ink on lower left hand corner : “36”.

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo showing telescopic view of landscape through ocular of a dial sight. Image is coincident with graticule with horizontal and vertical scales. (see worksheet for diagram).In ink on lower left hand corner : “35”.

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of R.D. Hill and H.A. Waters assembing/operating dial sight (same equipment as held by T.H. Laby in no 122.3/273 in Vol. 1/2)In ink on lower left hand corner : “34”.

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of Bill Caldwell operating dial sight on tripod.In ink on lower left hand corner : “33”.

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of H.A. Waters operating instrument on tripod. Two rotary switches marked “Graticule”, switch positions “Off On”; similarly “Vernier” -- “Off On”.In ink on lower left hand corner : “32”.

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of P.G. Law & J.B. Willis operating optical dial gauge comparator.In ink on lower left hand corner : “31A”.

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of Mr Kakanine, draughtsman, draawing graphic design plans.In ink on lower left hand corner : “31”.

Black and white photograph of cyclotron machinery in white envelope entitled “”Cyclotron Photographs (Duplicate set)’

Black and white photograph of optical glass specimens”. Photograph has sheet attached with words: “A finished assembly of plate glass and some resulting optical prisms”.On back in pencil: “No 25 Optical Glass - Prism” On top right hand corner in ink: “25”

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo showing a close up of hands handling equipment, same as in no 127.In ink on lower left hand corner : “14”

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo showing Gordon Crickmore using compass on drawing board. Same photo as 267In ink on lower left hand corner : “16”.

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo showing close up of glass optical flat in case. Photographed label reads: “Glass optical flat. Made by Natural Philosophy Laboratory. Melbourne University. Certificate Number 18. Accuracy of surface, flat within .000,001 (unmarked surface). Accuracy of surface, within .000,002 inch (marked) “use other side”. A photograh in Cd red light of the interference fringes of this flat when placed on a standard glass flat is shown above. Initials: [signature]. Tests made by: [VDH signature]. Certificate issued by T.H.L. Date: Feb 19th 1941.In ink on lower left hand corner : “17”.

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of E.R. Johnson using equipment.In ink on lower left hand corner : “18”.