The Natural History of the Tea Bush, with Observations on the Medicinal Properties of Tea and the Effects of Tea Consumption by John Coakley Lettsom is an important work that explores the many facets of tea as both a plant and a beverage. In the book, the author examines the history of tea, its influence on the human body and medicinal properties. John Coakley Lettsom explores the quality of tea, its cultivation and harvesting, and the effects of tea on health. This book is a valuable source of knowledge for both tea fans and specialists in the field of medicine and biology.