Georg Josef 1763-1821 Beer

• Art of Preserving the Sight Unimpaired to an Extreme Old Age : And of Re-Establishing and Strengthening It When It Becomes Weak
• Art of Preserving the Sight Unimpaired to an Extreme Old Age : And of Re-Establishing and Strengthening It When It Is Become Weak
• Treatise on the Diseases of the Eye; Including the Doctrines and Practice of the Most Eminent Modern Surgeons, and Particularly Those of Professor Beer