The hemp plant belongs to the diœcious order of plants, of which the Hop is another member. That is to say, the flowers, male and female, are borne on separate shrubs. The male hemp plants die early, or are removed by hand, an operation which requires expert knowledge of the two plants; but the female is tended and looked after until the flowering tops are developed. These are then collected and dried, and are called _ganja_. The leaves, stalks and trash are collected, and this is called _bhang_; while the resin (which is collected by hand, like opium, or sometimes, made to adhere to the clothes, or special leather garments, or even the skins of men who walk up and down among the growing plants and is then scraped off and worked up into a mass by rolling and pressing) is called _churrus_. This is really the active principle of the hemp. Its presence in the flowering tops, leaves and stalks giving _ganja_ and _bhang_ their narcotic properties; and _churrus_ is therefore more potent in its intoxicating effects than either _ganja_ or _bhang_. _Ganja_ is a greenish-brown conglomeration of what looks like half-dried, tightly pressed grass; _bhang_ is somewhat similar in appearance, but looser in form; and _churrus_, the resin itself, is a greenish-brown, moist mass. When it has been kept some time, it becomes hard, friable, and of a brownish-grey colour. When it assumes this condition and colour, it is inert. All have a characteristic, faintly pungent, odour, and but slight taste. It is interesting to note that the word _churrus_ means a “bag” or “skin.” It is believed that the name was applied to the drug from the skins or bags in which it used to be imported in olden times, from Central Asia.