In the early stages of fever it is found very valuable when given in the form of a cold infusion, it being not only considered an excellent diluent at the commencement, but also when administered in the form of “a tincture,” prepared by macerating the leaves in proof spirit and adding a teaspoonful of the mixture to a small cup of water. This preparation is given to the patient at short intervals during the night, after the acute symptoms have subsided, and is often of great benefit during the latter stages. For this purpose, in hospitals and other institutions, the leaves which have been used once for the regular infusion, may be macerated in alcohol and a tincture of sufficient strength obtained at a cheap and economical rate. In a peculiar state of the brain, termed “sthenic excitement,” a condition clearly bordering on inflammation, more especially when produced by alcoholic stimulants, intense study or long-continued application of the mind to any particular subject or literary research, an infusion made from Green tea will quickly act as a salutary remedy. While, on the contrary, in periods of diminished excitement, a morbid vigilance and increased nervous disturbance is certain to follow its use, much better results being produced by small quantities repeated than by large ones in such cases. In cases of poisoning by arsenic and antimony, fatal results have been prevented by the prompt administration of a strong infusion of tea, its power as an antidote in such cases depending on the tannin decomposing the poisonous substances. While it is nearly as valuable an antidote to poisoning by opium as coffee, it is, however, only useful in combatting the secondary symptoms, and should never be administered in such cases until the stomach pump or other means have removed the opium from the stomach. In some forms of heart disease, tea proves a useful sedative, while in others it is positively injurious. Many cases of severe nervous headache are instantly relieved by a cup of strong Green tea taken without the addition of either milk or sugar, but should be only occasionally resorted to in such cases, it being much better to avoid the cause.