146 APPLIED PHYSIOLOGY 



249. Chloroform. Chloroform is a sweet-smelling liquid 

 which, when breathed into the lungs, causes a deep sleep. 

 It is used to produce insensibility during surgical opera- 

 tions. Its use requires extreme care, for it can easily 

 result in death. No one should even smell a bottle con- 

 taining it, for two or three breaths of it may render a per- 

 son insensible. 



SUMMARY 



1. Narcotics lessen the sense of fatigue and pain and 



produce sleep, but weaken the body and may cause 

 death. Their use may become an uncontrollable 

 habit. 



2. Alcohol is a kind of narcotic. 



3. Tobacco contains the narcotic nicotine. A little nico- 



tine quiets the cells, while more causes weakness, 

 and stomach sickness which may result in death. 



4. Tobacco used in any form produces poisonous effects. 



5. The tobacco habit tends to the use of strong drink. 



6. Opium quiets the cells of the body, lessens the sense 



of pain, and produces sleep. A little causes a feeling 

 of exhilaration, while a few grains may cause death. 



7. The opium habit deranges digestion and finally causes 



death. 



8. In poisoning by opium there are a deep sleep and 



contracted pupils and slow breathing. 



9. The poisoned person should be kept awake, made to 



vomit, and stimulated by coffee. 



10. Laudanum, paregoric, and soothing sirups are all 



forms of opium. 



11. Chloral produces sleep. A large dose may cause 



death. Treat its poisoning like opium poisoning. 

 .12, Chloroform, when inhaled, produces insensibility. 



