Johann Jacob Schweppe developed a process to manufacture bottled carbonated mineral water. He founded the Schweppes Company in Geneva in 1783 to sell carbonated water, and relocated his business to London in 1792. His drink soon gained in popularity; among his newfound patrons was Erasmus Darwin. In 1843, the Schweppes company commercialized Malvern Water at the Holywell Spring in the Malvern Hills, and received a royal warrant from King William IV. It was not long before flavoring was combined with carbonated water. The earliest reference to carbonated ginger beer is in a Practical Treatise on Brewing. published in 1809. The drinking of either natural or artificial mineral water was considered at the time to be a healthy practice, and was promoted by advocates of temperance. Pharmacists selling mineral waters began to add herbs and chemicals to unflavored mineral water. They used birch bark (see birch beer), dandelion, sarsaparilla, fruit extracts, and other substances. Phosphate soda A variant of soda in the United States called "phosphate soda" appeared in the late 1870s. It became one of the most popular soda fountain drinks from 1900 through the 1930s, with the lemon or orange phosphate being the most basic. The drink consists of fruit syrup, 1/2 teaspoon of phosphoric acid, and enough carbonated water and ice to fill a glass. This drink was commonly served in pharmacies. Mass market and industrialization Soft drinks soon outgrew their origins in the medical world and became a widely consumed product, available cheaply for the masses. By the 1840s, there were more than fifty soft drink manufacturers in London, an increase from just ten in the 1820s. Carbonated lemonade was widely available in British refreshment stalls in 1833, and in 1845, R. White's Lemonade went on sale in the UK. For the Great Exhibition of 1851 held at Hyde Park in London, Schweppes was designated the official drink supplier and sold over a million bottles of lemonade, ginger beer, Seltzer water and soda-water. There was a Schweppes soda water fountain, situated directly at the entrance to the exhibition. Mixer drinks became popular in the second half of the century. Tonic water was originally quinine added to water as a prophylactic against malaria and was consumed by British officials stationed in the tropical areas of South Asia and Africa. As the quinine powder was so bitter people began mixing the powder with soda and sugar, and a basic