Alligation

(al-le-ga's hun.) [Lat. all i go, I bind to.] (Arith.) A rule which teaches how to compound several ingredients for any design proposed. It is either medial or alternate. The former shows the rate or price of any mixture, when its several quantities and their rates are known; the latter is the method of finding the quantities of ingredients nece ary to form a compound of a given rate. [s. 21]