Search Constraints
You searched for:
Creator Personal Names
Lapp, N. LeRoy.
Remove constraint Creator Personal Names: Lapp, N. LeRoy.
All Subjects
Coal miners--Diseases.
Remove constraint All Subjects: Coal miners--Diseases.
All Subjects
Lungs--Dust diseases.
Remove constraint All Subjects: Lungs--Dust diseases.
All Subjects
Pneumoconiosis.
Remove constraint All Subjects: Pneumoconiosis.
1 - 2 of 2