1. Volume 33, Issue 6, Pages 581-599 (June 1958)
Studies on the Nature of the Arterial Blood Oxygen Unsaturation in Chronic Pulmonary Disease 
HURLEY L. MOTLEY, M.D., F.C.C.P. 
Diseases of the Chest 
Volume 33, Issue 6, Pages (June 1958)
DOI: /chest
Copyright © 1958 The American College of Chest Physicians Terms and Conditions

2. FIGURE 1
Nitrogen washout with oxygen breathing with the Waters Nitrogen Meter in two normals (No and No. 1499) and in two patients with severe pulmonary emphysema (No and No. 800). In Case 1501 the end tidal nitrogen was 2.3 per cent and the alveolar 5.7 per cent after 10 minutes of oxygen breathing. In Case 800 the end tidal was 2.2 per cent nitrogen with an alveolar of 4.4 per cent nitrogen after 15 minutes of oxygen breathing. This indicates obstruction in the smallest bronchioles in the parenchyma and markedly interferes with the uniformity of alveolar aeration.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1958 The American College of Chest Physicians Terms and Conditions

3. FIGURE 2
Chest roentgenogram of a 66 year old man with pulmonary fibrosis of unknown etiology. The total lung capacity was 56.0 per cent of normal predicted. Residual air was 22 per cent of total lung capacity.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1958 The American College of Chest Physicians Terms and Conditions

4. FIGURE 3
Chest roentgenogram of 32 year old woman with sarcoidosis, confirmed by scalene node biopsy. The total lung capacity was 40.7 per cent of normal predicted. Residual air was 28 per cent of total lung capacity.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1958 The American College of Chest Physicians Terms and Conditions

5. FIGURE 4
Chest roentgenogram of 22 year old man with marked decrease in total lung capacity, 24.7 per cent of normal predicted. The diagnosis has been established with reasonable certainty as lupus erythematosus. The residual air volume was 858 ml. and the vital capacity supine 773 ml.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1958 The American College of Chest Physicians Terms and Conditions

6. FIGURE 5
Chest roentgenogram of 58 year old man with a history of working in asbestos plant for 37 years. The vital capacity is markedly decreased without obstruction, and total lung capacity is moderately decreased.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1958 The American College of Chest Physicians Terms and Conditions