Weak, spindling plants rarely produce large, vigorous shoots, the leaves of such suckers are generally small and of a yellowish color. When the plants are fully ripe and ready to harvest the suckers will be found to be growing vigorously around the root of the plant. This is doubtless the best evidence of its maturity, more reliable by far than any other as it denotes the ripening of the entire plant. Suckering the plants hastens the ripening of the leaves, and gives a lighter shade of color, no matter on what soil the plants are grown. Having treated at some length of the various parts of the tobacco plant--stalk, leaves, flowers, capsules and suckers we come now to its nicotine properties. The tobacco plant, as is well known, produces a virulent poison known as Nicotine. This property, however, as well as others as violent is found in many articles of food, including the potato together with its stalk and leaves; the effects of which may be experienced by chewing a small quantity of the latter. The New Edinburgh Encyclopedia says: "The peculiar effect produced by using tobacco bears some resemblance to intoxication and is excited by an essential oil which in its pure state is so powerful as to destroy life even in very minute quantity." Chemistry has taught us that nicotine is only one among many principles which are contained in the plant. It is supposed by many but not substantiated by chemical research that nicotine is not the flavoring agent which gives tobacco its essential and peculiar varieties of odor. Such are most probably given by the essential oils, which vary in amount in different species of the plant. An English writer says: "Nicotine is disagreeable to the habitual smoker, as is proved by the increased demand for clean pipes or which by some mechanical contrivance get rid of the nicotine." The late Dr. Blotin tested by numerous experiments the effects of nicotine on the various parts of the organization of man. While the physiological effects of nicotine may be interesting to the medical practitioner, they will hardly interest the general reader unless it can be shown that the effects of nicotine and tobacco should be proved to be identical.