Lymphoid Organs 029-Spleen, H&E 040-Thymus, newborn human, H&E 055-Pharyngeal tonsil, H&E 056-Palatine tonsil, H&E 121-Stomach, rat rattus, H&E 134-Spleen, rat rattus, silver impregnation 135-Lymph node, dog, H&E 139-Palatine tonsil, H&E 148-Lymph node, monkey, H&E