"Essay on the effect of iodine on the human body with practical observations on its use in the treatment of bronchocele, scrofula and tuberculous diseases of the chest and abdomen" - a book written by William Gardner is a valuable source of knowledge about the effect of iodine on the human body. The author offers the reader not only theoretical information about this chemical element, but also shares practical observations and recommendations regarding its use in the treatment of a number of diseases, including bronchocele, scrofula, and tuberculosis of the respiratory and digestive organs. This book will be a useful source of information for those interested in the medical aspects of the use of iodine in the treatment of disease."