[106] A Test of Clear Head and Steady Nerves

[109] Blood Corpuscles

[112] Surface Veins and Deep-Lying Arteries of Inner Side of Right Arm and Hand

[114] Diagram of Artery, Capillaries, and Vein

[116] The Exterior of the Heart

[117] Diagram of Valves in the Veins and Heart

[118] The Blood-Route trought the Heart

[121] The School Physician Examining Heart and Lungs

[127] Rowing is a Splendid Exercise for Heart and Lungs

[131] The Great Essential to Life—Air