Heart and pericardium, diaphragm and aorta, shown in isolation, in 8 numbered illustrations. 3 illustrations of heart with intact pericardium, diaphragm and aorta, anterior and posterior views. 2 illustrations of pericardium dissected to show cardiac muscles. 1 illustration of aorta divided in coronal section to show interior, anterior view. 2 illustrations of pericardium, shown under a microscope.