*Alcohol and the Social Environment.*—Our social environment includes the people with whom we are directly or indirectly associated. The presence in any community of those who are immoral, inefficient, or defective, places a burden upon those who are mentally and physically capable and renders them liable to results which are the outgrowth of weakness or viciousness. The fact that alcohol causes pauperism, crime, and general inefficiency, thereby rendering the social environment less conducive to what is best in life, is plainly evident. To realize how alcohol harms the individual through its effects upon society in general, one has only to take into account his dependence upon society for intellectual and moral stimuli, for industrial and economic opportunity, for protection, and for general conditions that make for health and happiness. As we strive to improve our physical environment, so should we also strive for the betterment of social conditions. *Industrial Use of Alcohol.*—Interesting and instructive in this connection is the fact that alcohol is, after all, a substance capable of rendering great service to humanity. The injury which it causes is the result of its misuse. Though unfit for introduction into the human body, except in the most guarded manner, it is adapted to a great variety of uses outside of the body. A combustible substance which is readily convertible into a gas, it may be substituted for gasoline in the cooking of food, lighting of dwellings, and the running of machinery. As a solvent for gums, resins, essential oils, etc., it is used in the preparation of varnishes, extracts, perfumes, medicines, and numerous other substances of everyday use. Through its chemical interactions, it is used in the manufacture of ether, chloroform, explosives, collodion, celluloid, dyestuffs, and artificial silk. In fact, alcohol is stated by one authority to be, next to water, the most valuable liquid known.(136) Opposed to an extensive use of alcohol for industrial purposes is the guard which the government must keep over its manufacture on account of its use in beverages. Though alcohol may be profitably manufactured and sold at thirty cents per gallon, the government revenue stamp of $2.08 per gallon practically prohibits its use for many purposes. A step toward a wider application to industrial purposes has been taken by the law permitting the sale of so-called "denatured"(137) alcohol without the tax for revenue. This law has proved beneficial to some extent, though the practical solution of the problem is still remote.