The reviews cover several medical books and a collection of epidemiological reviews. 1. **The Biology of Pneumococcus** by Benjamin White and **Pneumonia. With Special Reference to Pneumococcus Lobar Pneumonia** by Roderick Heffron, both republished by Harvard University Press, are detailed accounts of the history and current understanding of pneumococcal disease. They are valuable for those interested in the evolution of medical knowledge and for physicians seeking insights into the sources of current knowledge. 2. **Common Symptoms of Disease in Children** (6th ed.) by R.S. Illingworth is a comprehensive guide to diagnosing common symptoms in children. While it includes some outdated or controversial information, it offers practical knowledge and emphasizes the importance of emotional, familial, and social factors. The book is recommended as a reference but should be used critically. 3. **Diagnosis of Diseases of the Chest** (Volume IV, 2nd ed.) by Robert G. Fraser and J.A. Peter Paré is a detailed reference work with a unique decision tree feature. It provides extensive information on differential diagnoses, tables, figures, and predicted values for pulmonary function tests, making it a valuable resource for chest physicians, teachers, and medical students. 4. **Epidemiologic Reviews** (Volume 1, 1979) edited by Philip E. Sartwell covers 11 topics including Legionnaires' disease, hepatitis, Burkitt's lymphoma, and breast cancer. Each review includes a bibliography and an index. The book is praised for its comprehensive and practical content, particularly the chapters on Legionnaires' disease, hepatitis, and the effects of exogenous sex hormones on the fetus. However, the chapter on epidemiologic patterns of blood pressure in children is criticized for lacking a critical appraisal.The reviews cover several medical books and a collection of epidemiological reviews. 1. **The Biology of Pneumococcus** by Benjamin White and **Pneumonia. With Special Reference to Pneumococcus Lobar Pneumonia** by Roderick Heffron, both republished by Harvard University Press, are detailed accounts of the history and current understanding of pneumococcal disease. They are valuable for those interested in the evolution of medical knowledge and for physicians seeking insights into the sources of current knowledge. 2. **Common Symptoms of Disease in Children** (6th ed.) by R.S. Illingworth is a comprehensive guide to diagnosing common symptoms in children. While it includes some outdated or controversial information, it offers practical knowledge and emphasizes the importance of emotional, familial, and social factors. The book is recommended as a reference but should be used critically. 3. **Diagnosis of Diseases of the Chest** (Volume IV, 2nd ed.) by Robert G. Fraser and J.A. Peter Paré is a detailed reference work with a unique decision tree feature. It provides extensive information on differential diagnoses, tables, figures, and predicted values for pulmonary function tests, making it a valuable resource for chest physicians, teachers, and medical students. 4. **Epidemiologic Reviews** (Volume 1, 1979) edited by Philip E. Sartwell covers 11 topics including Legionnaires' disease, hepatitis, Burkitt's lymphoma, and breast cancer. Each review includes a bibliography and an index. The book is praised for its comprehensive and practical content, particularly the chapters on Legionnaires' disease, hepatitis, and the effects of exogenous sex hormones on the fetus. However, the chapter on epidemiologic patterns of blood pressure in children is criticized for lacking a critical appraisal.