Planetary Achromat

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  Single Mirror 1:1 Reimaging

  Additional Formats

  [Incl c.ltr BHRule to Donald A. Loomis {Custom Optics}; c.ltr Henry Mazy {Amersil} to BHRule; c.ltr Robert R. Shannon to BHRule; 3 memos BHRule to ISB; ltr James L. Woods {Perkin-Elmer} to ISB; ltr WABaum to ISB; c.ltr ISB to WABaum; c.ltr R. R. Beyer {Kodak} to WABaum; c.ltr E. Y. Laytty {Corning} to BHRule; ltr Sidney Weiser {Weiser/Robodyne} to ISB; ltr Paul Lee to ISB; c.ltr ISB to PLee]

  Bowen

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  Thermal Compensation (DTM Image Tube)

  Additional Formats

  [Incl ltr WABaum to ISB; c.ltr BHRule to HWB]

  Bowen

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  Cassegrain Schmidt [#1]

  Additional Formats

  [Incl c.ltr WABaum to Don E. Davidson; c.4 ltrs ISB to WABaum; ltr WABaum to ISB]

  Bowen

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  H -- MISCELLANEOUS [44]

  Additional Formats

  [John S. Hall {c.ltr JSH to John Irwin}; Robert Hardie {c.ltr WABaum to RH}; Emerson Hartong {ltr of passage ISB}; Sherwood K. Haynes; John F. Heard {folded}; George H. Herbig; Byron Hill {incl ltr MtWilson & Palomar staff to ISB}; W. A. Hiltner {c.ltrs BHRule to WAH}; W. G. Hingston; Arthur R. Hogg; Holiday {Carl L. Biemiller}; Erik Holmberg; Ralston Holmes; J. Hopmann; Fred Hoyle; Edwin P. Hubble; C. M. Huffer; Milton L. Humason]

  Bowen

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  W -- MISCELLANEOUS (Walker-Wildt) [28]

  Additional Formats

  [Merle F. Walker; George Wallerstein; Gordon W. Wares; G. L. Weissler; Western Printing & Lithographing Co. {Melissa Laud}; Westinghouse Electric Corp. {E. F. Larson}; Ray J. Weymann; Clyde N. White; John B. Whiteoak {incl ltr ISB to EAA}; Albert E. Whitford; W. L. Wilcock {c.ltr WABaum to WLW}; Rupert Wildt {AURA}]

  Bowen

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  Frederick G. FASSETT, Jr. [33]

  Additional Formats

  [Incl ltr Ailene Bauer to ISB; c.ltr FGF to WABaum; c.ltr FGF to SBNicholson]

  Bowen