In his admirable work on hygiene Dr. Parker remarks that “tea possesses a decidedly stimulating and restorative action on the human system, no depression whatever following its use, the pulse being a little quickened, and the amount of pulmonary carbonic acid accordingly increased.” From this experiment he regards “tea as a most useful article of diet for soldiers, the hot infusion being potent against heat and cold, and more useful still in great fatigue in tropical countries by its great purifying effect on brackish and stagnant water.” Adding that “tea is so light, easily carried and so readily prepared, that it should form the drink, _par excellence_, of the soldier in service or on the march, above all its power of lessening the susceptibility to malarial and other influences.” And Admiral Inglefield is quoted as strongly recommending the use of tea to Arctic travelers and explorers, as seamen who surveyed with him in the polar regions after an experience of one day’s rum drinking came to the conclusion that tea was more beneficial to them while undergoing the severe work and intense cold. Under the infirmities of advancing age, especially when the digestive powers become enfeebled and the size and weight of the body begin perceptibly to diminish, the value of tea in checking the rapid waste of tissue is particularly observable, and persons, when very much fatigued, will be sooner refreshed by drinking a cup of moderately strong, good tea, than by drinking wine or spirits of any kind. In allaying or satisfying severe thirst, no beverage will be found as efficacious as a draught of cold tea.