Where do the tenth pair go?--"To the neck, throat, lungs, stomach, and different parts of the body." What happens if a nerve be destroyed?--"It cannot carry messages to the brain." What happens if a nerve be pressed upon too long?--"It cannot carry messages to the brain." What is necessary if you would have a strong, healthy brain?--"My brain must be used; my brain must be rested; my brain must be supplied with pure blood." How must you use your brain?--"In thinking and studying." How may the brain be rested?--"By sleep." In what other way may the brain be rested?--"By thinking of something different from that which made it tired." What two brain-poisons have you learned about?--"Alcohol and tobacco."[4] With what may you show the harm done by alcohol to the gray part of the brain?--"With alcohol and the white of an egg." How could you show it with these?--"I would pour the alcohol upon the white of the egg." What would then happen?--"The white of the egg would harden as if it had been boiled." What is in the white of an egg?--"Water and albumen." Where else may we find albumen?--"In some seeds, and in the gray part of the brain and the nerves." What harm does alcohol do to the nerves?--"It takes away their moisture and hardens them." What harm does this do to them?--"It paralyzes them, or makes them lose their power." What happens when nerves are paralyzed?--"They lose their power over the muscles; they are unfit to carry messages to and from the brain." What harm does alcohol do to the gray part of the brain?--"It hardens it, as it hardens the white of an egg." What harm does this do to the brain?--"It paralyzes it, or makes it lose its power." What then happens?--"It cannot properly do its work of thinking, and cannot control the nerves." What disease is sometimes caused by this hardening of the brain by alcohol?--"Paralysis, which often ends in death." What harm does alcohol do to the blood-vessels of the brain?--"It fills them with impure blood." What disease is caused by the blood-vessels of the brain being filled with impure blood?--"Congestion of the brain, or apoplexy, which ends in death." What else frequently happens to those who drink alcoholic liquors?--"They become crazy, or insane." If you wish to have a strong, healthy brain, what should you do about these liquors?-- "Never put them into my mouth, To steal away my brains." Tell of what dreadful disease people die who are bitten by a mad dog.--"Of hydrophobia." Of what dreadful disease do people sometimes die who are bitten by the serpent in alcoholic liquors?--"Of delirium tremens." Which is the more dreadful, hydrophobia or delirium tremens?--"One is as dreadful as the other." How can you be sure never to have delirium tremens?--"By drinking nothing which has alcohol in it." Will a little beer or wine hurt you?--"Yes, it may make me love the taste of alcohol."