The Integument.- General.- New Approaches and Diagnostic Techniques in Dermatopathology.- Neoplasms.- Squamous Cell Papilloma, Skin, Rat.- Squamous Cell Papilloma, Skin, Mouse.- Squamous Cell Carcinoma, Skin, Rat.- Squamous Cell Carcinoma, Skin, Mouse.- Squamous Cell Carcinoma Arising in Induced Papilloma, Skin, Mouse.- Basal Cell Carcinoma, Skin, Rat.- Basal Cell Tumor, Skin, Mouse.- Trichoepithelioma, Skin, Rat.- Melanocytic Tumors, Skin, Mouse.- Melanocytic Tumors, Skin, Hamster.- Melanocytic Tumors, Rat.- Fibroma, Dermis and Subcutis, Rat.- Fibrosarcoma, Dermis and Subcutis, Rat.- Fibroma, Dermis and Subcutis, Mouse (Especially B6C3F1 Mouse).- Fibrosarcoma, Dermis and Subcutis, Mouse.- Lipoma, Subcutis, Rat.- Liposarcoma, Subcutis, Rat.- Fibrous Histiocytoma, Malignant, Subcutis, Rat.- Mast Cell Tumor, Skin, Mouse.- Clitoral Gland Tumors, Mouse.- Hibernoma, Rat.- Nonneoplastic Lesions.- Epidermal Inclusion Cyst, Skin, Rat.- Alopecia, Rat and Mouse.- Cutaneous Sensitization, Experimental, Mouse, Hamster, Rat.- Steatitis, Subcutaneous and Generalized, Rat.- Follicular Hyperkeratosis, Induced, Rabbit Ear.- Viral Infections.- Mousepox, Skin, Mouse.- Papillomavirus Infection, Skin, Mouse.- Inherited Conditions.- Obese Mutant Mice: Obese (ob) and Diabetes (db).- The Skin of the Rhino Mouse.- Hairless Mouse, HRS/J hr/hr.- Skin of the Pupoid Fetus (pf/pf) Mutant Mouse.- Skin of the Repeated Epilation (Er/Er) Mutant Mouse.- The Tight Skin (TSK) Mouse.- Asebia, a Mutation Affecting Sebaceous Glands, Mouse.- Ichthyosis, Inherited, Skin, Mouse (ic/ic).- The Mammary Gland.- Structure and Function.- Morphology and Development of the Rat Mammary Gland.- Endocrine Influences on the Mammary Gland.- Histologic/Immunocytochemical Markers, Mammary Gland, Rat.- Neoplasms.- Classification of Neoplastic and Nonneoplastic Lesions of the Rat Mammary Gland.- Factors That Modulate Chemical Carcinogenesis in the Mammary Gland of the Female Rat.- Markers in Chemically Induced Tumors, Mammary Gland, Rat.- Adenoacanthoma, Mammary Gland, Mouse.- Mixed Adenocarcinoma, Mammary Gland, Mouse.