Pneumoconiosis
affection of the lungs arising from occupation in a dustladen atmosphere. It takes a form of chronic bronchitis, with the development of a catarrhal condition and partial pneumonia, shrinking and coloring the tissues. Among stone cutters disease is known as phthisis, and among miners as anthracosis. Its manicoal miners as anthracosis. Its mani- festations vary with the occupation, but the mortality is heavy in all.