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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"

Diagram of a molecular structure referenced as "Watson-Crick base pairs"

Diagram referenced as "Ethylguanine-methylcytosine"

Diagram referenced as "Fourier difference synthesis for Watson-Crick DNA models"

Copy of a printed diagram referenced as "Hypothetical models of chromosome structure. DNA-histone fibers"

Molecular structure diagram referenced as "L-H A configuration. No letters"

Graph referenced as "Variation of A stenic hindrance with Φ [phi]). No letters"

Diagram referenced as "Unit cell of A C projection. No letters"

Diagram referenced as "Perspective model of A. No letters"

Diagram referenced as "Projections of A No letters on B v A"

Diagram referenced as "Histone drying 35A° [degrees] + 75A° [degrees]"

An [autoradiograph] image referenced as "Frog-K-Metal 48° [degrees]C"

Histogram referenced as "Absorption spectrum of Newt Oxg Haemoglobin and Newt OSO4 Haemoglobin"

Graph referenced as "Library pH 12"

Graph referenced as "Library pH 2"

Table referenced as "Table of acceptor activities of sRNA"

Table referenced as "Oligonucleotide digests results"

Diagram referenced as "Radioactive labelling sites in sRNA"

Table referenced as "All variations on 'XYZ' calculations AT pH 12 + 2"

Graph referenced as "Nucleotide mixture 2"

Graph referenced as "Nucleotide mixture variable comp."

Graph referenced as "Nucleotide mixture 1."

Graph referenced as "Hale's DNA V H3T diagram"

X-ray diffraction exposure referenced as "X-ray photograph Film No.1369 (Reversed)"

X-ray diffraction exposure referenced as "X-ray photograph film No.1673"

X-ray diffraction exposure referenced as "X-ray photograph film No. 1631 A"

X-ray diffraction exposure referenced as "X-ray photograph film No. 1673 B"

X-ray diffraction exposure referenced as "X-ray photograph film No. 1371"

X-ray diffraction exposure referenced as "X-ray photograph film No. 1341"

X-ray diffraction exposure referenced as "X-ray photograph film no 1740 A"

X-ray diffraction exposure referenced as "X-ray photograph film no 525 (Reversed) A + B"

X-ray diffraction exposure referenced as "X-ray photograph film no 1431 (Reversed) A"

Graph referenced as "Dichronic ratio for Na DNA [sodium salt DNA] (Bradbury, Price, Wilkinson) J[ournal]. Mol[ecular].Biol[ogy].3. 301, 1961. Fig 4b"

An [autoradiograph] image referenced as "2410 Α [alpha]"

Diagram referenced as "Li DNA [lithium salt DNA] base region Fouriers Δ [delta] P (B0)"

Diagram referenced as "Li DNA [lithium salt DNA] base region Fouriers PO (B0)"

Diagram referenced as "Li DNA [lithium salt DNA] base region Fouriers Δ [delta] P (BI)"

Diagram referenced as "Li DNA [lithium salt DNA] base region Fouriers PO (BI)"

Diagram referenced as "Li DNA [lithium salt DNA] base region Fourier  Δ [delta] P (B II)"

Diagram referenced as "Li DNA [lithium salt DNA] base region Fourier PO (B II)"

Diagram referenced as "Li DNA [lithium salt DNA] base region Fourier  Δ [delta] P (B III)"

Diagram referenced as "Li DNA [lithium salt DNA] base region Fourier PO (B III)"

Diagram referenced as "Li DNA [lithium salt DNA] base region Fourier  Δ [delta] P (H I)"

Diagram referenced as "Li DNA [lithium salt DNA] base region Fourier PO (HI)"

Diagram referenced as "Li DNA [lithium salt DNA] base region Fourier Δ [delta] P (H II)"

Diagram referenced as "Li DNA [lithium salt DNA] base region Fourier PO (H II)"

Diagram referenced as "Li DNA [lithium salt DNA] base region Fourier Δ [delta] P (H III)"

Diagram referenced as "Li DNA [lithium salt DNA] base region Fourier P (H III)"

Diagram referenced as "Li DNA [lithium salt DNA] base region Fourier Comp. B"

Diagram referenced as "Li DNA [lithium salt DNA] base region Fourier Comp. H"

X-ray diffraction exposure referenced as "Poly C diffraction"

Molecular diagram referenced as "Watson Crick and Hoogsteen [DNA] base pairs"

Diagram referenced as "Li DNA [lithium salt DNA] base region Fourier"

Copy of a printed representation referenced as "Haemoglobin low resolution model"

Photographic image referenced as "Myoglobin low resolution model"

Diagram referenced as "Myoglobin Fourier at three resolutions"

Copy of a printed x-ray diffraction exposure referenced as "Myoglobin precession x-ray photograph"

Graph referenced as "Early tension changes in isometric twitches of frog sartorius at 0° [degrees]C at various muscle lengths"

Graph referenced as "Effect of stretching a tetanized muscle in 3 different regions of the tension-length curve"

Graph referenced as "Isometric tension-length curves of the sartorius 0-0 and of the semi-tendinosus 0-0 at 0° [degrees]C"

Diagram referenced as "Mechanical equivalent diagram of contraction typical of those shown in Fig 3"

Graph referenced as "Isotonic shortening of frog sartorius muscle in twitches at 0° [degrees]C P in g w t"

Graph referenced as "Volume changes as a result of a single twitch of a frog sartorius muscle"

Graph referenced as "Relative intensity plotted against spacing of 1.0 for frog muscle"

Diagram referenced as "Released isotonic contraction. Mechanical equivalent diagram"

Graph referenced as "Records of dual shortening changes which occur in released isotonic contractions of a frog sartorius muscle"

Molecular diagram referenced as "Actinomycin. Dia."

Molecular diagram referenced as "Actinomycin DNA Dia."

Table captioned as "Range of possible molecular orientations in the unit cell of DNA molecule in A configuration obtained by comparing observed and calculated diffraction on layer planes 1=0 and 1=6" Referenced as "A orientation from x-ray. Dia."

Composite image of x-ray diffraction exposures referenced as "DNA A stretched fibres"

Diagram referenced as "Transfer RNA schematic"

Composite image of x-ray diffraction exposures of A-type and B-type DNA referenced as "DNA A/B patterns"

Table and text relating to A-type DNA referenced as "A Residuals"

Histogram relating to observed and calculated diffraction in A-type DNA referenced as "A Obs + calc."

Diagram referenced as "Perspective of an A model. Dia."

Diagram referenced as "C axis projection of A"

Photograph of B-type DNA space-filled molecular model referenced as "DNA model 'B'. Plates taken 1962"

Photograph of B-type DNA space-filled molecular model referenced as "DNA model 'B'. Plates taken 1962 and copy B"

X-ray exposure of RNA referenced as "RNA pattern (Spencer)"

Copy of a printed image of an autoradiograph referenced as "Cairns Coli chromosome"

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Diagram of a molecular structure referenced as "Hoogsteen [DNA] base pairs"

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