The Upper Respiratory System (Nares, Larynx, Trachea).- Histology, Ultrastructure, Embryology.- Macrosopic, Microscopic, and Ultrastructural Anatomy of the Nasal Cavity, Rat.- Development of Syrian Golden Hamster Tracheal Epithelium During Prenatal and Immediate Postnatal Stages.- Epithelial Alterations in Explant Cultures of Fetal Tracheae of Syrian Golden Hamsters.- Neoplasms.- Response to Carcinogens of Respiratory Epithelium, Syrian Golden Hamster (Mesocricetus Auratus).- Polypoid Adenoma, Nasal Mucosa, Rat.- Neoplasms, Mucosa, Ethmoid Turbinates, Rat.- Squamous Cell Carcinoma, Nasal Mucosa, Rat.- Squamous Cell Carcinoma, Upper Respiratory Tract, Syrian Hamster.- Adenocarcinoma, Anterior Nasal Epithelium, Rat.- Hemangiosarcoma, Nasal Cavity, Mouse.- Clear Cell Carcinoma, Larynx, Syrian Hamster.- Lesions Due to Infections.- Murine Respiratory Mycoplasmosis, Upper Respiratory Tract, Rat.- Sialodacryoadenitis Virus Infection, Upper Respiratory Tract, Rat.- The Lung (Bronchi, Bronchioles, Alveolar Ducts, Alveoli, Pleura).- Histology and Ultrastructure.- Structure and Function of the Lung.- Neoplasms.- Bronchiolar/Alveolar Adenoma, Lung, Rat.- Alveolar Type II Cell Adenoma, Lung, Mouse.- Bronchiolar Adenoma, Lung, Mouse.- Bronchiolar/Alveolar Carcinoma, Lung, Rat.- Squamous Cell Carcinoma, Lung, Syrian Hamster.- Squamous Cell Carcinoma, Lung, Rat.- Radiation-Induced Squamous Cell Carcinoma, Lung of Rodents.- Pleural Mesothelioma, Syrian Hamster.- Metastatic Tumors, Lung, Mouse.- Nonneoplastic Lesions.- Bleomycin-Induced Injury, Mouse: A Model for Pulmonary Fibrosis.- Endogenous Lipid Pneumonia in Female B6C3F1 Mice.- Pulmonary Lipidosis, Rat.- Alveolar Lipoproteinosis, Rat.- Bronchiolar/Alveolar Hyperplasia, Lung, Rat.- Fly Ash Pneumoconiosis, Hamster.- Asbestosis, Hamster.- Pulmonary Hair Embolism.- Lesions Due to Infection.- Sendai Virus Infection, Lung, Mouse and Rat.- Rat Coronavirus Infection, Lung, Rat.- Pneumonia Virus of Mice Infection, Lung, Mouse and Rat.- Sialodacryoadenitits Virus Infection, Lung, Mouse.- Murine Respiratory Mycoplasmosis, Lung, Rat.- Pneumocystosis, Lung, Rat.- Aspergillosis and Mucormycosis, Lung, Rat.- Toxoplasmosis, Lung, Mouse and Hamster.