119. Who discovered the circulation of the blood? How was the discovery received? What remark did Harvey make? What does that show? Name the two divisions of the circulation. Describe the route of the blood by the diagram. 1. The lesser circulation. 2. The greater circulation. 120. What is the velocity of the blood? How long does it require for all the blood to pass through the heart? How long does it take the blood to make the tour of the body? What is the average temperature of the body? How much does this vary in health? _Ans_. Not more than 2°, even in the greatest extremes of temperature.--FLINT. 121. How and where is the heat of the body generated? How is it distributed? In what diseases is the variation of temperature marked? How is the temperature of the body regulated? 122. In what way does life exist through death? Is not this as true in the moral as in the physical world? What does it teach? How rapidly do our bodies change? What are the three vital organs? 123. Name some of the wonders of the heart. 124-126. What is the lymphatic circulation? What is the thoracic duct? The lymph? The glands? What is the office of the lymphatics? What are the lacteals? Give some illustrations of the action of the lymphatics of the different organs. Should we use care in selecting wall paper? What is meant by the subcutaneous insertion of morphine? How do hibernating animals live during the winter? What is a congestion? Its cause? 127. What is blushing? Why does terror cause one to grow cold and pale? How is an inflammation caused? Name its four characteristics. 128. How may severe bleeding be stopped? How can you tell whether the blood comes from an artery or a vein? Why should you know this? What is the scrofula? What are "kernels"? 129, 130. How may a scrofulous tendency of the system be counteracted? What kinds of food stimulate this disease? What is the cause of a "cold"? Why does exposure sometimes cause a cold in the head, sometimes on the lungs, and at others bring on a rheumatic attack? Why is a cold dangerous? _Ans_. It weakens the system and paves the way for other diseases. What is the theory of treating a cold? Describe the method. What is catarrh? Cause? 131, 132. How is alcohol produced? Is alcohol present in domestic wines and home-brewed ales? Are they, then, harmless drinks? What is a ferment? (See also pp. 300, 301.) What is the difference between ferments, bacteria, microbes, and fungi? _Ans_. A few investigators still look upon the microorganisms known as bacteria and microbes as animal existences, but the larger part now concede them to be vegetable. 133. What is the effect of fermentation? What can you say concerning yeast? 134. Explain the process of making beer. Wine. What is distillation?