An authority is said to be implied when it is to be inferred from the circumstances of the case; and things spoken or written, or the ordinary course of dealing, may be accounted circumstances of the case.

Illustration

A owns a shop in Mymensingh, living himself in Dacca, and visiting the shop occasionally. The shop is managed by B, and he is in the habit of ordering goods from C in the name of A for the purposes of the shop, and of paying for them out of A's Funds with A's knowledge. B has an implied authority from A to order goods from C in the name of A for the purposes of the shop.