8. Babúl bark occurs in large thick pieces, coarsely fibrous, of a deep mahogany colour, and astringent, bitterish taste. It is an excellent astringent, and though less powerful than some others of the same class, it possesses the advantage of being obtainable, either in the fresh or dried state, throughout India, the tree yielding it being common everywhere in dry, sandy localities. 9. The best form for medical purposes is a decoction prepared by boiling one ounce and a half of the bruised bark in a pint of water for ten minutes, and straining. Of this the dose is from one and a half to two ounces twice daily, or oftener in _Chronic Diarrhœa_, &c.; it is, however, chiefly employed as an external or local application—as an injection in _Leucorrhœa and other Vaginal Discharges_; as an enema in _Piles_ and _Prolapsus (descent) of the Anus_, and as a gargle in _Sore Throat, and in Sponginess and Ulceration of the Gums_. In all these cases, however, it is generally used conjoined with alum and other agents. 10. +Acorus, or Sweet Flag Root.+ The root stock or Acorus Calamus, _Linn._ Bach or Vach (_Hind._, _Duk._), Bach, Saféd Bach (_Beng._), Warch (_Punj._), Vá'í (_Kash._), Vashambú (_Tam._), Vasa, Vadaja (_Tel._), Vash-anpa (_Mal._), Bajé (_Can._), Vékhanda (_Mah._), Vaj, Vach (_Guz._), Lene or Linhe (_Burm._), Jaringowe (_Malay_). 11. This is one of the commonest of bazaar medicines, and generally procurable everywhere, of good quality, at a very small cost. It occurs in pieces of various lengths, about the thickness of the thumb, rather flattened, spongy, provided with numerous sheath-like, ringed appendages; odour peculiar and aromatic; taste, bitterish, warm and somewhat acrid. Till very recently it was included in the British Pharmacopœia. It well deserves a place in every Indian domestic medicine chest. 12. It is a tonic and stomachic of no small value, and is best given in the form of infusion: one ounce of the bruised root to half a pint of boiling water, in doses of a wine-glassful twice or thrice daily. Combined with Chiretta, it has been reported to cure _Intermittent Fevers in natives_, but though its power in this respect is doubtful, except, perhaps, in cases of the mildest description, yet in _Convalescence after this and other forms of Fever_, a mixture of equal parts of the infusion of Acorus and Chiretta (98) is as good a formula as can be employed. The same combination proves also most serviceable in _Dyspepsia, especially when attended with much flatulence, in Loss of Appetite and Constitutional Debility_.