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Produced by the MRC Biophysics Research Unit/Department of Biophysics, King's College London.

King's College London Department of Biophysics

KCL Department of Biophysics: glass and acetate slides ('quarter plates', 'whole plates' and 'half plates') relating to the work of the Medical Research Council (MRC) Biophysics Research Unit (KCL Department of Biophysics from 1964)

KCL Department of Biophysics: quarter plate series: slides of images relating to research conducted in the Biophysics Unit and subsequently Department of Biophysics

Photographic image referenced as a "Reflecting Microscope"

Photographic image referenced as "Reflecting Microscope"

Graph referenced as "Absorption spectra of purines, pyrimidines and nucleic acids"

Graph referenced as "Microphotometer recordings of thymine spectrum at room temperature and at 90 k [Kelvin]"

Schematic diagram referenced as "Absorption cell for low temperature studies"

Schematic diagram referenced as "Ultraviolet achromatic refraction objective 1.24 NA [numerical aperture]"

Diagram referenced as "Middle piece and tail of a ram spermatozoa"

Diagram referenced as "Head structure of ram spermatozoa"

Diagram referenced as "Circular scales for angle measurements"

Diagram referenced as "Circular dial 1-100"

Printed diagram referenced as "Generalized drawing of mammalian sperm"

Printed diagram captioned as "Drawings of different mammalian sperms"

Printed diagram of a transverse section of seminiferous tubule in a mammal referenced as "Mammalian sperm heads"

Printed diagram captioned as "Drawing of the stages of spermatogenesis in mammals"

Printed diagram captioned as "Drawing of the stages of spermatogenesis in guinea pigs"

Printed graph referenced as "Ethyl-alcohol in CCl4 [carbon chloride] layer 1mm (1-3) and 5mm (4-6)"

Printed graph referenced as "absorption spectrum of methyl alcohol in carbon tetrachloride solutions"

Table captioned as "Fine structure in ultra-violet absorption spectra of some purines, pyrimidines, amino acids, nucleosides etc. "

Microscopic image of cellular structure [no reference]

Ultra-violet absorption spectra image and path length recordings referenced as "Ultra-violet absorption spectra of para and ortho substituted phenols"

Ultra-violet absorption spectra and path length recordings referenced as "Ultra-violet absorption spectra of pyridine bases"

Ultra-violet absorption spectra image and path length recordings referenced as "The effect on the ultra-violet absorption spectrum of substituting an octyl group in the othro position to a hydroxyl group"

Microscope image referenced as "Effect of ultrasonics upon mitosis sticky chromosome bridges"

Graph showing ultra-violet absorption curves relating to the effect of ultrasonics on nucleic acids referenced as "Effect of ultrasonics in nucleic acids. U.V. Absorption curves"

Copy of J M M Pinkerton's paper, "On the Pulse Method of Measuring Ultrasonic Absorption in Liquids" in Proceedings of the Physical Society, Section B, Volume 62, Number 5, 1949.

Series of microscopic images of Tobacco Mosaic Virus (TMV) crystals referenced as "TMV crystals"

Photograph referenced as "Mechanical parts of reflecting objective"

Microscope image referenced as "Autoradiography of newt cells"

Copy of a photographic print referenced as "Accelerated flow method for rapid reactions"

Copy of a photographic print referenced as "Accelerated flow apparatus and amplifier"

Copy of a photographic print referenced as "Accelerated flow apparatus"

Graph referenced as "Ultra-violet absorption spectrum of nuclear sap"

Copy of a photographic print referenced as "Cassor double beam oscilloscope. Chassis from underneath"

Graph referenced as "Micro-photometer record across chick fibroblast and wedge"

Photographic image referenced as "Phase annali"

Microscopic image referenced as "Ferric oxide solution X13,000"

Microscopic image referenced as "Wyoming Bentonite. Large particle size x 13000"

Microscopic image referenced as "Wyoming Bentonite. Small particle size E.S.D. 15-20 mp"

Copy of a printed table of the structural data of minerals in clay referenced as "Structural data of minerals (Clay)"

Microscope image referenced as "Autoradiograph 28 day exposure"

Microscope image referenced as "Autoradiograph, newt normal 20 days"

Microscope image referenced as "Autoradiograph 5 days"

Microscopic image referenced as "Vanadium pentoxide solution aged x13,000"

Microscopic image referenced as "Vanadium pentoxide solution fresh x13,000"

Table referenced as "Reflecting objectives 0.18"

Photographic image referenced as "Interferogram 0.79 N.A. [numerical aperture] 33% [central obstruction] 0.21"

Photographic image referenced as "Interferogram 0.54 N.A. [numerical aperture] 35% [central obstruction] 0.24"

Photographic image referenced as "Tobacco mosaic virus (T.M.V.) 7 Interchanging bands"

Photographic image referenced as "Tobacco mosaic virus (T.M.V.) 12 Helical contour"

Schematic diagram referenced as "Amici component N.A. [numerical aperture] 1.4"

Microscopic image of unknown cellular structure [no reference].

Hand-drawn graph referenced as "Absorption curves for two constituents of chick fibroblast in tissue culture"

Diagram referenced as "Measuring grid"

Microscopic image referenced as "Mitotic cells in a chick"

Diagram referenced as "Microphotometer dial"

Schematic diagram referenced as "Diagram of apparatus. Optical paths"

Copy of a printed diagram of extinction curves in the ultraviolet absorption spectrum referenced as "Extinction curves"

Schematic diagram referenced as "Clocking system. Exposure times"

Graph referenced as "Microphotometer trace through a living cell"

Graph referenced as "Microphotometer trace at 312. Irradiation nuclei"

Graph referenced as "Microphotometer trace at 265. Irradiation nuclei"

Graph referenced as "Measurement of absorption in irradiated cells"

Graph referenced as "Measurements of absorption of a living irradiated cell"

Schematic diagram referenced as "Optical paths in apparatus"

Graph showing ultra-violet absorption curve referenced as "Extractions from bean root tips"

Graph referenced as "Ultra-violet absorption curve of in vitro and in root lip extract"

Diagram referenced as "Generalized diagram of mammalian sperm"

Diagram referenced as "Diagram of head of ram sperm"

Diagram referenced as "Diagram of middle piece transverse section R.S. 7"

Diagram referenced as "Diagram of middle piece of ram sperm. Longitudinal section"

Diagram referenced as "Diagram of head of ram sperm. Cross sections through tail and fibrils"

Diagram referenced as "Diagram of head of ram sperm showing axes of symmetry"

Microscope image referenced as "Ram spermatozoa paper. Plate I"

Microscope image referenced as "Ram spermatozoa paper. Plate II"

Microscope image referenced as "Ram spermatozoa paper. Plate III"

Microscope image referenced as "Ram spermatozoa paper. Plate IV"

Microscope image referenced as "Ram spermatozoa paper. Plate V"

Microscope image referenced as "Ram spermatozoa paper. Plate VI"

Histogram referenced as "Observed and calculated nucleoprotamine"

Histogram referenced as "Valuation of equatorial spacing with humidity DNA"

"Optical transform DNA 'B'"

X-ray diffraction exposure of DNA referenced as "DNA Polysine. Film No 365"

X-ray diffraction exposure of DNA referenced as "E.coli DNA 96% RH [relative humidity] Film 430"

X-ray diffraction exposure referenced as "Calf thymus nucleohistone 98% R.H. [relative humidity]"

X-ray diffraction exposure of DNA referenced as "E coli DNA 96% R.H. [relative humidity] Film 430"

X-ray diffraction exposure referenced as "Bull sperm 98% R.H. [relative humidity]"

X-ray diffraction exposure referenced as "Chick arythrocyte nuclei fibres film No. 414"

X-ray diffraction exposure referenced as "DNA protamine. Film No. 361"

X-ray diffraction exposure referenced as "Rat spleen nucleohistone"

X-ray diffraction exposure referenced as "Rat thymus nucleohistone"

X-ray diffraction exposure of DNA from calf thymus referenced as "Calf thymus DNA (Line focus tube)"

X-ray diffraction exposure of lithium (Li) salt DNA referenced as "Li DNA at 66% R.H. (relative humidity] L-84"

X-ray diffraction exposure of lithium (Li) salt DNA referenced as "Li DNA at 75% R.H. [relative humidity] L-83"

Graph comparing the DNA levels through the Feulgen technique in samples labelled "Mouse liver, Krebs and Ehrlich" referenced as "DNA Feulgen. Mouse liver, Krebs Ehrlicks"

Graph recording levels of DNA during interphase in a mouse sample referenced as "DNA synthesis mouse t.e."

Graph referenced as "DNA counts v. ordinary counts."

Graph referenced as "DNA Synthesis. Mouse t.e."

Graph recording the change in DNA value in Kreb's ascite tumour sample referenced as "Krebs"

Graph showing the change in DNA value in Ehrlich's sample referenced as "Ehrlichs"

Graph referenced as "DNA Synthesis. Krebs."

Graph referenced as "DNA- D.M. Synthesis Mouse t.c."

Graph referenced as "Dry Mass-DNA Mouse t.e"

Schematic diagram referenced as "Interference balance"

Space-filled molecular diagram of B-type DNA referenced as "Diagram of DNA 'B' and nucleopoly-l-arginine"

Histogram referenced as "Transform of DNA 'B' and nucleoprotamine."

Molecular diagram referenced as "Molecular structure of DNA absorbance"

Graph referenced as "Elution of various DNAs"

X-ray diffraction exposure of potassium (K) salt A-type DNA referenced as "Best K-DNA A-picture Film 474"

X-ray diffraction exposure of DNA referenced as "Microcamera picture on line focus tube"

X-ray diffraction exposure of DNA referenced as "Microcamera picture. Point focus tube"

X-ray diffraction exposure referenced as "Unfixed erythrocyte nuclei. Wet"

X-ray diffraction exposure referenced as "Fixed erythrocyte nuclei at 98% R.H. [relative humidity]"

X-ray diffraction exposure of rubidium (Rb) salt A-type DNA referenced as "Microcamera picture at Rb DNA (A type) Film (No) 471"

X-ray diffraction exposure of rubidium (Rb) salt A-type DNA referenced as "Rb-DNA large camera (A type) Film 479"

X-ray diffraction exposure of a nucelohistone referenced as "Divisions nucleohistone (fibres) (at 98% RH [relative himidity]) Film 478."

X-ray diffraction exposure of histone and DNA sample referenced as  "Lysene rich histone + DNA at 98% R H [relative humidity] Film 483"

Diagram of a projected molecular structure referenced as "Poly-l-proline three fold helix structure"

Graph referenced as "Infra-red absorption spectra of poly-l-proline"

Drawing of a proposed molecular model referenced as "Poly-l-Proline. Proposed model viewed along the axes"

Graph referenced as "A-D calculated intensity per cylinder for 1, 2, 7, 19 solid cylinders. E-F observed intensity along equator for E Native Rat tail tendon F dried and then rewet"

Microscope image referenced as a "Solid objective resolution test"

Microscope image referenced as "Blood cells"

"Schematic diagram of a T2 particle with one sector of the hexagonal head cut away"

Copy of a printed microscope image referenced as "Bacteria being lysed"

Microscope image referenced as "T. Bacteriophage heads 800 A° [degrees]"

Copy of a printed diagram referenced as "Antibody mechanism of interaction from Endeavour-Pauling"

Microscope image referenced as "Electron micrograph of phage"

Microscope image referenced as "Pthalocyanine structure"

Microscope image referenced as "Southern beam mosaic virus"

Microscope image referenced as "Insect muscle fibres"

X-ray diffraction exposure of nucleohistone referenced as "Wet, oriented nucleohistone (apparently dried)"

X-ray diffraction exposure of thymocytes referenced as "Thymocytes. Unfixed 38A° [degrees]"

X-ray diffraction exposure  of DNA and histone sample referenced as "DNA + Lysine rich histone"

Microscope image referenced as "Nucleohistone atomised."

Microscope image referenced as "Nucleohistone atomised (Wilkins)"

Microscope image referenced as "Schramms degraded TMV (Copy)"

X-ray diffraction exposure of nucleohistone referenced as "Nucleohistone showing 60A."

"Schematic diagram of nucleohistone possible structure"

"Schematic diagram of nucleoprotamine"

Molecular diagram referenced as "Base pairs showing hydrogen bond sites"

X-ray diffraction exposure of loligo [sperm] heads referenced as "Loligo heads 98% R.H. [relative humidity]"

X-ray diffraction exposure referenced as "60A° [degrees] spacing (dry) (Composite slide)"

X-ray diffraction exposure referenced as "60A° [degrees] spacing (98% RH [relative humidity] )."

X-ray diffraction exposure referenced as "Microcamera picture of nucleohistone"

X-ray diffraction exposure of B-type DNA referenced as "Microcamera picture of DNA. F.400 B type"

X-ray diffraction exposure referenced as "60A° [degrees] spacing (75 % [relative humidity])"

X-ray diffraction exposure referenced as "60A° [degrees] spacing (92% [relative humidity])"

Histogram referenced as "Krebs 2 DM [dry mass] + DNA. Histograms"

Histogram referenced as "Krebs 2 Cale. Synthetic Curves. DM [dry mass] + DNA"

Histogram referenced as ""DNA 'A' transform Na [sodium], K [potassium], Rb [rubidium] salts. I. IV. 56"

Histogram referenced as "Standard rod and tilted rod transform I.IV.56"

Diagram referenced as "DNA base sugar phosphate "backbone""

Diagram referenced as "DNA base pairs"

Molecular diagram referenced as "DNA adenine-thymine pairs"

Molecular diagram referenced as "DNA cytosine-guanine pairs"

X-ray diffraction exposure of loligo sperm referenced as "Loligo sperm without tails 98% R.H. [relative humidity]"

X-ray diffraction exposure of herring sperm referenced as "Herring sperm 98% R.H. [relative humidity]"

X-ray diffraction exposure of a nucleoprotein referenced as "Regenbogen fondle n.p. [nucleoprotamine] 98% RH [relative humidity]"

X-ray diffraction exposure of nucleoprotamine referenced as "Synthetic nucleoprotamine 98% RH [relative humidity]"

X-ray diffraction exposure of DNA and histone sample referenced as "Lysine rich histone + DNA 98% RH [relative humidity]"

X-ray diffraction exposure of lysine and DNA sample referenced as "Lysine + DNA 98% RH [relative humidity]"

X-ray diffraction exposure of lysine and DNA sample referenced as "Lysine + DNA 92% RH [relative humidity]"

X-ray diffraction exposure of potassium (K) salt DNA referenced as  "K.DNA 92% RH {relative humidity]"

X-ray diffraction exposure of rubidium (Rb) salt DNA referenced as  "Rb DNA 92% RH {relative humidity]"

X-ray diffraction exposure of trout sperm referenced as "Trout sperm 98% RH [relative humidity]"

Composite x-ray diffraction exposure of nucleoprotamines referenced as "Composite nucleoprotamine type picture"

Composite x-ray diffraction exposure of loligo and trout sperm sample referenced as "Loligo/trout 98% RH [relative humidity]"

X-ray diffraction exposure referenced as "Synthetic nucleoprotamine 98% RH [relative humidity]"

X-ray diffraction exposure referenced as "Bachforelle n.p [nucleoprotamine] 98% R.H [relative humidity]"

Chromatogram referenced as "Nucleohistone-B-Glycerophosphate- 80%-N-Propanol"

Histogram referenced as "Observed and calculated transform DNA 'B'"

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Histogram referenced as "Observed and calculated transform DNA 'B'"

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