Tobacco smoke

Definition and stakes

Francis M. Walters,  Physiology and Hygiene for Secondary Schools

“ If much smoke is taken into the lungs, it irritates the delicate linings and tends to clog them up. Tobacco smoke also contains the poison nicotine, which is absorbed into the blood. For these reasons the cigarette user who inhales the smoke does himself great harm, injuring his nervous system and laying the foundation for diseases of the air passages. The practice of smoking indoors is likewise objectionable, since every one in a room containing the smoke is compelled to breathe it.
Alcohol and Diseases of the Lungs.—Pneumonia is a serious disease of the lungs caused by germs.
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Source: Gutenberg

Edwin W. Fuller,  Sea-gift: A Novel

“ The smokers now had to relieve each other, placing a guard at the door to prevent our exit. Thicker and thicker grew the cloud, till the lungs, wearied with incessant coughing, almost refused to inhale the bitter, sickening air. My eyes streaming with water closed themselves in spite of me, and my eyeballs were crossed with the nausea. I pressed my face down into the pillow for relief, but even that seemed a bag of tobacco, that was driving its dust into my throat. Every particle of air had its concomitant particle of smoke, and with every wretched gasp I gulped down a wad of poison. ”
Source: Gutenberg

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