Search Constraints

Start Over
Filtering by: Creator Delzell, Athol Hugh Remove constraint Creator: Delzell, Athol Hugh Resource Type Dissertation Remove constraint Resource Type: Dissertation

Search Results

  • Nearctic sawflies I, the adults and larvae of the subfamily Blennocampinae (Hymenoptera: Tenthredinidae)

    Creator:
    Smith, David R.
    Abstract:
    Seventy-two species of Blennocampinae in 21 genera and six tribes are known from the Nearctic region. The adults and known larvae of all species and genera are keyed, described and illistrated. A definition of the subfamily, a review of previous work, a table of host-plant associations, and a discussion of...
    Resource Type:
    Dissertation
    Full Text:
    , Ames; Robert Lavigne, University of Wyoming, Laramie; Hugh B. Leech, California Academy of Sciences

  • Henry Augustus Rowland and his electromagnetic researches

    Creator:
    Miller, John D. (John David)
    Abstract:
    This analysis concerns the life and scientific work of Henry Augustus Rowland (1848-1901), organizer and the first chairman of the physics department at The Johns Hopkins University in 1876. Special materials used in this research included three pieces of Rowland's experimental apparatus which are extant in the Smithsonian Institution Division...
    Resource Type:
    Dissertation
    Full Text:
    ; Robert P. Delzell, District Manager of the General Radio Company; Jon B. Eklund, Assistant Curator