The Description of the Human Body He believed the heat of the heart somehow caused all movement of the body. Blood vessels he realized were pipes, he saw that veins carried digested food to the heart. (This was brought further by William Harvey. Harvey developed the idea of the circulation of the blood.) Descartes felt that an energetic part of blood went to the brain and there gave the brain a special type of air imbued with vital force that enabled the brain to experience, think and imagine. This special air then went through the nerves to the muscles enabling them to move. The Description of
To Have and to Hold To Have and to Hold To Have and to Hold (1899) is a novel by American author Mary Johnston. Published by Houghton Mifflin, it was the bestselling novel in the United States in the following year (1900). "To Have and to Hold" is the story of an English soldier, Ralph Percy, turned Virginian explorer in colonial Jamestown. Ralph buys a wife for himself - a girl named Jocelyn Leigh - little knowing that she is the escaping ward of King James I, fleeing a forced marriage to Lord Carnal. Jocelyn hardly loves Ralph - indeed, she seems to abhor him.