Three new eJAAVSO preprints

(ej199): "Long-Term Visual Light Curves and the Role of Visual Observations in Modern Astrophysics" by J. R. Percy

(ej198): "A Study of the Orbital Periods of Deeply Eclipsing SW Sextantis Stars" by D. Boyd

(ej197): "The AAVSO Widow—Or Should We Say Spouse?" by T. R. Williams