An Inquiry into the Nature of Black Phthisia or Ulcers Caused by Coal Accumulation in the Lungs of Coal Workers by Macellar, Archibald, is a key scientific document examining the important problem of coal work and respiratory disease among miners. The book thoroughly describes the symptoms, causes and consequences of this dangerous disease caused by breathing in coal dust. The author describes in detail the mechanisms of disease development, its impact on the human body, and possible methods of prevention and treatment. This book is essential reading for anyone interested in coal worker health and the study of respiratory disease.