2 finding aid(s) found containing the word(s) Helium.

  1. Ray Eber Brown papers, 1915-1962

    23,000 items ; 77 containers plus 5 oversize ; 36 linear feet. -- Manuscript Division, Library of Congress, Washington, D.C.

    Summary:

    Naval architect and engineer. Correspondence, memoranda, diaries, notebooks, subject files, reports, articles, blueprints, charts, graphs, specification sheets, photographs, newspaper clippings, and other printed material pertaining primarily to Brown's career as a naval architect and marine engineer.

  2. William Ralph Bennett papers, 1922-circa 1998

    43,400 items ; 124 containers plus 21 oversize ; 49.6 linear feet. -- Manuscript Division, Library of Congress, Washington, D.C.

    Summary:

    Physicist, inventor, educator, and author. Topical files, notebooks, records of scientific experiments, research material, correspondence, scientific papers, lecture files, drafts of books with related background and research material, printed matter, and miscellaneous material documenting Bennett's development of the gas laser and other inventions, his academic and professional career, and his...