Dwarf Variables -- Kuiper Chapter 18

[Includes copies of typed mss.: "The Unusual Brightness in the Ultraviolet of Certain T Tauri-Type Stars," by G. Haro and G. H. Herbig; "Variable Stars of Low Luminosity," by A. H. Joy [Presidential Address of the AAS, Michigan]; "Emission Lines in Stellar Spectra," by A. H. Joy; "Short Period Changes in the Spectrum of T Tauri," by E. B. Weston and L. H. Aller; "The SS Cygni Variables as Spectroscopic Binaries," [by A. H. Joy]]