Integrated Research and Training in Space-molecular Biology Semiannual Progress Report, Apr. 1 - Sep. 30, 1966

Development and maintenance of electron microscope with high-field superconducting solenoid lense

High voltage electron microscopy of lunar samples

Lunar pyroxenes from Apollo 11, 12, 14, and 15 were investigated. The iron-rich and magnesium-rich pyroxene specimens were crushed to a grain size of ca. 50 microns and studied by a combination of X-ray and electron diffraction, electron microscopy, 57 Fe Mossbauer spectroscopy and X-ray crystallography techniques. Highly ordered, uniform electron-dense bands, corresponding to exsolution lamellae, with average widths of ca. 230A to 1000A dependent on the source specimen were observed. These were?qr separated by wider, less-dense interband spacings with average widths of ca. 330A to 3100A. In heating experiments, splitting of the dense bands into finer structures, leading finally to obliteration of the exsolution lamellae was recorded. The extensive exsolution is evidence for significantly slower cooling rates, or possibly annealing, at temperatures in the subsolidus range, adding evidence that annealing of rock from the surface of the moon took place at ca. 600 C. Correlation of the band structure with magnetic ordering at low temperatures and iron clustering within the bands was studied

Electron microscopy in microbiology and lunar rock analysis Summary report, Sep. 1969 - Dec. 1970

Electron microscopy and diffraction for microbiology and microanalysis of lunar rock

Investigation in space-related molecular biology including considerations of the molecular organization in luster sounding rocket program Progress report, 1 Jan. 1968 - 31 Aug. 1969

Space molecular biology research using high resolution microscop

Integrated research and training in space-molecular biology annual progress report, apr. 1, 1964 - mar. 31, 1965

Integrated research and training in space molecular biology - electron microscope laboratory completion and correlated research with electron diffractio

Electron microscopic and biochemical characterization of Fraction 1 protein

High resolution electron microscopy of Fraction I protein from plant leave

Reassociation of hemocyanins from subunit mixtures

Reactions of hemocyanin from different biological origins studied by electron microscop

High voltage electron microscopy and electron diffraction of pyroxenes in type B lunar samples from Apollo 11

Lunar pyroxene 10044 specimens cleaved and sectioned by diamond knife ultramicrotomy were examined by standard (75 to 100 kV) and high voltage (200 kV) electron microscopy and diffraction. Salient findings based on evaluation of 2000 plates show uniform 300 to 600 A-wide bands, probably corresponding to single crystal domains, with lattice spacings of 2. A High resolution bright and dark field images of iron-rich and magnesium-rich crystals were compared with corresponding electron diffraction patterns. Possible relations of observed structures to magnetic domains were considered