3-074-617 - The Print Collector/Heritage Images

Advertisement for Dr. Scott's Electric Hair Brush, 1883. 'An Honest Remedy. Recommended By The Best Physicians...ALL CHEMISTS WILL REFUND THE PRICE IF NOT AS REPRESENTED...A SERIES OF INTERESTING EXPERIMENTS DEMONSTRATING THE ELECTRIC POWER OF DR. SCOTT'S ELECTRIC HAIR BRUSH...Annexed wood-cut represents a simple pocket galvanometer or compass, which is presented gratis with each Brush; the arrow point with its dot represents end pointing constantly to the north or magnetic pole. Dr. Scott's Electric Brush has the property of attracting or repelling the needle according to which end is brought near the compass...Experiment No. 4. - Showing the power of the Electric Brush by throwing its influence through any substance of reasonable thickness - the interposed substance may be a book, glass, wood, clock, stone, metal, living or dead matters. A hand placed between Dr. Scott's Electric Brush and the galvanometer will, with equal felicity, allow the electric fluid to pass from one to the other, plainly shown by the diversion of the needle. The Electric Brush (Fig. E) is so powerfully charged as to send its influence through a space of 6 to 8 inches, with or without intervening substances'. From "Illustrated London News", 1883.