=47. Spitting.=--Tobacco in any form makes the saliva flow. Men do not dare swallow it, for it makes them sick. So they spit it out. No one likes to see this. It is a dirty and filthy habit. Besides, the saliva is lost, and cannot help digest food. Tobacco stains the teeth brown. You can always tell a tobacco chewer by his teeth. His breath will smell of tobacco, and even his clothes are offensive to the nose. =48. Tobacco lessens strength.=--Tobacco always makes a person sick at the stomach, at first. After a while, he becomes used to it, and an ordinary chew or smoke does not make him sick. But a large chew or smoke will always make him sick again. When a person is sick from tobacco he is very weak. Even if he is not sick, the tobacco poisons his muscles and makes his strength less. When a man trains for a hard race he never uses tobacco. =49. Tobacco hinders digestion.=--Tobacco and its smoke both have a burning taste. This makes the throat sore, and causes a cough. Tobacco does not help the stomach to digest food. Smokers and chewers often have headaches and coated tongues. These are signs of a poor digestion. =50. Effect upon the young.=--Tobacco is more harmful to boys than to men. If boys smoke they cannot run fast or long. They cannot work hard with their brains or hands. They do not grow fast, and are liable to have weak hearts. =51. Tobacco harms others.=--Many persons do not like the smell of tobacco, and no one likes the spit. No one should use it in the presence of others. The tobacco user's pleasure should not spoil the comfort and happiness of others. =52. Snuff.=--Powdered tobacco is called snuff. Snuff causes sneezing. No one should harm the nose and the whole body for the pleasure of a sneeze. Years ago snuff was used much more than it is now. =53. Chewing.=--Chewing tobacco is the most poisonous way of using it, for it keeps most of the nicotine in the mouth. Chewing will make any one very sick, unless he spits out all the saliva. =54. Smoking.=--Men smoke pipes, cigars, and cigarettes. The smoke has nicotine, and is poisonous. Pipe stems get dirty and full of nicotine. After a while they smell bad and are very poisonous. An old smoker's pipe will make a young smoker sick. =55. Cigarettes.=--Cigars are not so poisonous as a pipe, for more of the nicotine is burned up. Cigarettes are often made of weak tobacco. A cigarette does not contain so much tobacco as a cigar. Hence a cigarette does not cost much. It can be smoked in a hurry. It does not make a boy so sick as cigars do. Boys and men use a great many cigarettes where they would not touch a cigar. This makes the use of cigarettes the most dangerous form of smoking. Selling cigarettes to young boys is forbidden by law.