Bark (botany) rope, used for example in the rigging of Viking age longships. Among the commercial products made from bark are cork, cinnamon, quinine (from the bark of Cinchona) and aspirin (from the bark of willow trees). The bark of some trees notably oak ("Quercus robur") is a source of tannic acid, which is used in tanning. Bark chips generated as a by-product of lumber production are often used in bark mulch in western North America. Bark is important to the horticultural industry since in shredded form it is used for plants that do not thrive in ordinary soil, such as epiphytes.
History of aspirin to sell Bayer aspirin not only in the U.S., but to compete with the German Bayer abroad as well. Taking advantage of the losses Farbenfabriken Bayer (the German Bayer company) suffered through the reparation provisions of the Treaty of Versailles, Weiss worked out a deal with Carl Duisberg to share profits in the Americas, Australia, South Africa and Great Britain for most Bayer drugs, in return for technical assistance in manufacturing the drugs. Sterling also took over Bayer's Canadian assets as well as ownership of the Aspirin trademark which is still valid in Canada and most of the world. Bayer