A simple experiment which will show how injurious is cigarette smoke inhaled may be easily performed by means of a handkerchief: After taking a mouthful of smoke, put the handkerchief tightly over the lips and blow the smoke through it. You will find a dark brown stain on it. If the smoke is inhaled, and then blown through the handkerchief, there is very little stain, if any; consequently all that nicotine must remain in the lungs. _An Ex-Smoker's Advice._--A young man who, not long ago, was an inveterate smoker, but who was recently induced to "swear off," came to me and talked in this strain: "I have been doing some figuring lately, and the result astonishes me. When I was smoking my hardest my average was eight cigars a day. Sometimes it would run over eight and sometimes under; but eight was about the all-round figure. I rarely bought my cigars by the box, and as I indulged in straight 10-cent goods, 80 cents a day was what my smoking cost me. This, with 40 cents added for cigars that I gave away and lost shaking dice, make a total of about $6.00 a week that I now save. It is just nine weeks and three days since I swore off, and by Saturday I shall have $60 in the bank, without an effort on my part save that required to control an unnecessary appetite. I must also regard as an asset the superabundance of animal spirits I enjoy as a direct result of my abstinence from a habit that everybody knows is weakening, when indulged in to excess. Smoke yourself, do you? Well, try my scheme. Swear off and put your cigar money in the bank. You might need it some day, even if you are a newspaper man." The New York _Medical Journal_ contains a convincing article on tobacco: "Tobacco contains an acrid, dark brown oil, an alkaloid, nicotine, and another substance called nicotianine, in which exists its odorous and volatile principles. When tobacco is burned a new set of substances is produced, some of which are less harmful than the nicotine, and are more agreeable in effect, and much of the acrid oil--a substance quite as irritating and poisonous as nicotine--is carried off. These fire-produced substances are called, from their origin, the 'pyridine series.' By great heat the more aromatic and less-harmful members of the series are produced, but the more poisonous compounds are generated by the slow combustion of damp tobacco. This oil which is liberated by combustion is bad both in flavor and in effect, and it is better, even for the immediate pleasure of the smoker, that it should be excluded altogether from his mouth and air passages.