National Geographic : 1924 Nov
Lead gives light when darkness comes B LACK clouds hide the midday sun. A storm is about to break over the city. In every office and home people get up and turn on electric lights. In the emergency the power plant must supply electricity up to its capac ity. But only two of the generators are running, and it takes time to put the others in operation. Where is tlhe additional electricity to come from? In the power plant an electrician throws a switch that turns on the cur rent from many storage batteries. These batteries, made mostly of lead, provide the extra current until other generators are started. Millions of pounds of lead used Storage batteries in this country con tain millions of pounds of lead. They supply electricity for telephone, tele graph, and wireless communication. They furnish electrical energy for self-starters, lamps, and ignition sys tems in millions of automobiles. For yacht lighting and for motor boat lighting and ignition, storage bat teries again come to man's assistance. They supply current for turning tur rets, sighting and firing guns on war ships. They propel submarines be neath the surface. Lead aids man -sethesurfd faithfully and well in -- u-ve the storage battery. But it serves him more generally perhaps as paint. You can see red-lead paint every- where - on skyscraper skeletons, bridges, gas tanks, ships, on metal construction wherever used. So long as the paint film remains unbroken, it saves the covered surface and hence the entire structure from rapid dete rioration and eventual destruction. Producersof lead products Dutch Boy red-lead is the name of the pure red-lead made and sold by Na tional Lead Company. It comes in paste form which can be shaded to any dark color. On every keg of Dutch Boy red-lead is reproduced the picture of the Dutch Boy Painter shown here. This trade mark guarantees a product of the high est quality. Dutch Boy products also include white-lead, linseed oil, flatting oil, babbitt metals, and solder. National Lead Company also makes lead products for practically every purpose to which lead can be put in art, industry, and daily life. If you want information regarding any par ticular use of lead, write to us. If you wish to read further about this wonder metal, we can tell you of a number of interesting books on the subject. The latest and probably the most complete story of lead and its many uses is "L e a d, the Precious Metal," published by the Century Co., New York. Price $3.00. If you are unable to get it at your bookstore, write the pub lishers. NATIONAL LEAD COMPANY New York, 111 Broadway; Boston, 131 State St.; Buffalo, 116 Oak St.; Chicago, 900 West 18th St.; Cincinnati, 659 Freeman Ave.; Cleveland, 820 West Superior Ave.; St. Louis, 722 ' Chestnut St.; San Francisco, 485 Califor nia St.: Pittsburgh, National Lead & Oil Co. of Pa., 816 Fourth Ave.; Philadelphia, John T.Lewis & Bros. Co., 47 Chestnut St.