From the foregoing it appears then that coffee without either cream or sugar is less unwholesome than when these substances are added to it, but even when it is taken in this way it causes decided symptoms of indigestion in many persons. The writer is not of the opinion that the habitual taking of coffee is to be commended, and would, therefore, not advise its constant use; it, however, must be admitted--as is the case with all other substances that cause indigestion--that in many people, and particularly in those who live out-of-doors and are actively engaged in physical occupations, the use of coffee seems to result in no harm. Like other substances that cause indigestion in a concentrated form, coffee when largely diluted is less apt to produce disturbances of this kind; for example, a beverage consisting of two-thirds of hot skimmed milk and one-third coffee may be taken by many dyspeptics in reasonable amounts without any particular harm. Parents should be warned against allowing growing children to drink coffee; it seriously interferes with the normal chemical changes going on in their bodies, and is almost certain to be followed in later life by nervous dyspepsia. _Tea._--The stimulating principle of tea is chemically so nearly like that of coffee that they are generally considered as being one and the same. That they differ decidedly in their action on the stomach and the body generally there can, however, be no doubt. The stimulating action of tea comes on more slowly than that of coffee, and is correspondingly prolonged. In most persons it is not so apt to produce nervousness, nor is its action in preventing sleep so pronounced. On the stomach it also produces effects that are diametrically opposed to those induced by coffee, since, instead of stimulating, it seems actually to retard the secretion of acids. It is, therefore, probably true that we should look upon tea as a beverage with much less disfavor than we do coffee--though, of course, it should always be remembered that there may be, and unquestionably are, many exceptions to this judgment.