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Chiefly relating to x-ray diffraction studies of unknown substance, likelihood being B-Poly-L-alanine. 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"

X-ray diffraction exposure and graphs relating to RNA research carried out by Watson Fuller referenced as 'Dr Fuller'

Representations of the structure of RNA referenced as 'Dr Spencer'

Microscope image of stretched DNA fibre referenced as 'Prof Wilkins'

X-ray diffraction studies and projections referenced as 'Dr Arnott'

Diagram representing N-formyl-methionine and Su+ Tyrosine and their respective anti-codons referenced as 'Dr Arnott'

Diagram entitled 'Diagram of transfer RNA molecule showing four helical arms and anti-codon' referenced as 'Prof Wilkins'

X-ray diffraction exposures referenced as 'Dr Dover'

X-ray diffraction exposures relating to double helical RNA structures referenced as 'Dr Fuller'

X-ray diffraction exposures, possibly of RNA/Ribosomes, referenced as 'Dr Spencer'

X-ray diffraction exposures of nucleohistone referenced as 'Professor Wilkins'

Representations of stereochemistry and molecular packing in crystalline unit cell referenced as 'J F Pardon'

Comparative x-ray diffraction exposure possibly of nuclehistone referenced as 'Dr Spencer'

Diagrams and tables relating to the structure of B-Poly-L-alanine referenced as 'Dr Dover'

Graphs relating to structure of membranes referenced as 'Prof Wilkins'

X-ray diffraction studies and projections on the structure of double helical RNA originally referenced as 'Dr Arnott'

Graphs relating to research carried out on ribosomal RNA structure referenced as 'Dr Spencer'

Skeletal diagrams of structures of RNA referenced as 'Dr Fuller'

Printed diagram showing x-ray path within x-ray diffraction experiments referenced as 'Prof Wilkins'

Graphs and stereochemical representations relating to RNA structure research referenced as 'Dr Fuller'

X-ray diffraction exposures of double helical RNA referenced as 'Dr Arnott'

Experimental grids relating originally referenced as 'Dr Spencer'

Structural projections relating to RNA or Poly-L-alanine research referenced as 'Dr Arnott'

Teaching slides, chiefly captioned diagrams relating to the structure and function of nerve cells referenced as 'Dr Brown'

X-ray diffraction exposures relating to double helical RNA research referenced as 'Dr Spencer'

Autoradiographs, graphs and x-ray diffraction exposures on the structure of membranes specifically like egg lecithin referenced as 'Prof Wilkins'

Models and x-ray diffraction exposures relating to  the structure of transfer RNA referenced as 'Dr Fuller'

Images relating to the structural analysis of double helical RNA referenced as 'Dr Arnott'

X-ray diffraction exposures and graphs of research work relating to the structure of F-actin referenced as 'Dr Spencer'

Structural arrangements of nucleotides referenced as 'Dr Arnott'

Low angle x-ray diffraction exposures of ribosomal particles referenced as 'Dr Spencer'

Experimental grid lines referenced as 'Dr Arnott'

Images relating to x-ray diffraction studies and teaching images referenced as 'Dr Arnott'

X-ray diffraction exposures of B-Poly-L-alanine referenced as 'Dr Arnott'

X-ray diffraction exposures of B-Poly-L-alanine referenced as 'Dr Arnott'

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