Uses.--This species is one of those which produce the substance known in pharmacy as _aloes_, which is the juice of the leaf evaporated to the consistency of an extract. It is official in all pharmacopoeias and its properties are known to the Filipino herb-doctors. They use the fresh juice of the leaves as a stimulant of the scalp in baldness and locally in contusions. Aloes is a slow purgative and its irritating action on the lower portion of the large intestine extends to the genito-urinary organs. It is, therefore, an emmenagogue and its prolonged use causes hemorrhoids, especially in man. It is contraindicated where there is disease of the genito-urinary organs or rectum. As it increases the secretion of bile it is useful in certain hepatic diseases. It is used in small doses as a tonic in dyspepsia. The tonic dose is 1/2-20 centigrams; purgative, 15-50 of the extract, preferably in pill form. It is customary to associate it with other purgatives. Botanical Description.--A stemless plant, the leaves springing immediately from the root as in the pineapple, joined at the base, straight, ligulate, very fleshy and becoming thinner toward the end, with stiff thorns along the edges. Flowers between yellow and red outside and straw-colored inside, in racemes on a cylindrical scape 3° or more high, sometimes ramose, peduncles very short. Corolla cylindrical, somewhat incurved, cleft to the middle in 6 parts, 3 external, acute and superposed on the others, obtuse at the apex and of different color. Stamens 6, inserted at the nectiferous base of the ovary and of the same length as the corolla. Anthers erect. Ovary cylindrical with 6 furrows. Stigma obtuse, with raveled edges. The seed vessel ovoid, 3-valved, 3-celled, with 2 seeds in each, furnished with 3 spongy wings. Habitat.--Common in gardens. _Allium sativum_, L. Nom. Vulg.--_Ajo_, Sp.; _Bawang_, Tag.; _Garlic_, Eng. _Allium Cepa_, L. Nom. Vulg.--_Cebolla_, Sp.; _Lasuna_, _Sibuyas_, Tag.; _Onion_, Eng. Uses.--The garlic and the onion are used to excess as condiments in Philippine as well as Spanish cooking. Both are difficult of digestion and communicate a very disagreeable odor to the breath, intolerable to those who are unaccustomed to it. Garlic possesses the singular property, familiar to many students and soldiers, of inducing a transient fever if introduced within the anus. When bruised and applied to the skin it has a counter-irritant action which makes it useful in the treatment of rheumatism, but the odor is so disagreeable that it is not worth while to use it for that purpose when we have so many other medicines which produce the same effect without being objectionable. It is also used locally for the bites of venomous animals. The onion is used cooked as a poultice over the bladder and internally for various catarrhs. It is better to abstain from the therapeutic and culinary use of products so indigestible and so malodorous.