The Paraffin wax was processed by distilling residue left after crude petroleum was refined. Paraffin could be used to make inexpensive candles of high quality. It was a bluish-white wax, burned cleanly, and left no unpleasant odor, unlike tallow candles. A drawback to the substance was that early coal- and petroleum-derived paraffin waxes had a very low melting point. The introduction of stearin, discovered by Michel Eugène Chevreul, solved this problem. Stearin is hard and durable, with a convenient melting range of 54–72.5 °C (129.2–162.5 °F). By the end of the 19th century, most candles being manufactured consisted of paraffin and stearic acid. By the late 19th century, Price's Candles, based in London was the largest candle manufacturer in the world. The company traced its origins back to 1829, when William Wilson invested in of coconut plantation in Sri Lanka. His aim was to make candles from coconut oil. Later he tried palm oil from palm trees. An accidental discovery swept all his ambitions aside when his son George Wilson, a talented chemist, distilled the first petroleum oil in 1854. George also pioneered the implementation of the technique of steam distillation, and was thus able to manufacture candles from a wide range of raw materials, including skin fat, bone fat, fish oil and industrial greases. In America, Syracuse, New York developed into a global center for candle manufacturing from the mid-nineteenth century. Manufacturers included Will & Baumer, Mack Miller, Muench Kruezer, and Cathedral Candle Company. Decline of the candle industry Despite advances in candle making, the candle industry declined rapidly upon the introduction of superior methods of lighting, including kerosene and lamps and the 1879 invention of the incandescent light bulb and in the 2000s with faux candles and lanterns using LEDs. From this point on, candles came to be marketed as more of a decorative item. Candles retain their unique symbolic significance however, for instance as votive offerings. Candles became available in a broad array of sizes, shapes and colors, and consumer interest in scented candles began to grow. During the 1990s, new types of candle waxes were being developed due to an unusually high demand for candles. Paraffin, a by-product of oil, was quickly replaced by new waxes and wax blends owing to rising costs. Candle manufacturers looked at waxes such as soy, palm and flax-seed oil, often blending them with paraffin in hopes of getting the performance