_Bohea_ is called by the Chinese, _Ta-cha_ (large tea), on account of the maturity and size of the leaves; it contains a larger proportion of woody fibre than other teas, and its infusion is of a darker color and coarser flavor. _Congou_, the next higher kind, is named from a corruption of the Chinese _Koong-foa_ (great care, or assiduity). This forms the bulk of the black tea imported, and is mostly valued for its strength. _Souchong--Seaou-choong_ (small, scarce sort), is the finest of the stronger black tea, with a leaf that is generally entire and curly. It is much esteemed for its fragrance and fine flavor. _Pekoe_ is a corruption of the Canton name, _Pak-ho_ (white down), being the first sprouts of the leaf-buds; they are covered with a white silky down. It is a delicate tea, rather deficient in strength, and is principally used for flavoring other teas. 740. GREEN TEAS.--The following are the principal kinds: _Twankay_, _Hyson-Skin_, _Hyson_, _Gunpowder_, and _Young Hyson_. _Young Hyson_ is a delicate young leaf, called in the original language, _Yu-tsien_ (before the rains), because gathered in the early spring. _Hyson_, from the Chinese word _He-tchune_, which means, flourishing spring. This fine tea is gathered early in the season, and prepared with great care and labor. Each leaf is picked separately, and nipped off above the footstalk, and every separate leaf is rolled in the hand. It is much esteemed for its flavor. _Gunpowder Tea_ is only Hyson rolled and rounded, to give it the _granular_ appearance whence it derives its name. The Chinese call it _Choo-cha_ (pearl tea). _Hyson-Skin_ is so named from the Chinese term, in which connection _skin_ means the refuse, or inferior portion. In preparing Hyson, all leaves that are of a coarse yellow, or imperfectly twisted appearance, are separated, and sold as _skin-tea_, at an inferior price. _Twankay_ is the last picking of green tea, and the leaf is not rolled or twisted as much as the dearer descriptions. There is altogether less trouble bestowed on the preparation. COFFEE. 741.--The infusion or decoction of the roasted seeds of the coffee-berry, when not too strong, is a wholesome, exhilarating, and strengthening beverage; and, when mixed with a large proportion of milk, is a proper article of diet for literary and sedentary people. It is especially suited to persons advanced in years. People who are bilious and liable to costiveness, should abstain from it. When drank very strong, it proves stimulating and heating in a considerable degree, creating thirst and producing watchfulness. By an abusive indulgence in this drink, the organs of digestion are impaired, the appetite is destroyed, nutrition is impeded, and emaciation, general debility, paralytic affections, and nervous fever, are brought on.