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Electricity Manual for Beauty Culture by Glendora Stingley, Eleventh Revised Edition, 1939. Paper covers with stapled binding (staples have rusted and binding tape is spotted but tight). Owner's name written in ink on front cover, spotting/soiling to covers (see scan), browning around edges of covers and title page--other pages are clean and binding is tight. Includes: Importance of Electricity in the Practice of Beauty Culture; Electrical Units and Terms of Measurement; Wall Plate and Its Purpose; Faradic Current; Sinusoidal Current; Galvanic Current; High Frequency Currents; Electricity Relative to Permanent Waving; Cells and Batteries; Light Rays; Derivatives of Sunlight; Electrical Treatments; Precautions; Glossary; Resume of Electrical Current.