2. He was so called because he watched over the business with which he was charged; and it is immaterial whether he was employed in making a sale in a store, or whether charged with any other business. Institor appellatus est ex eo, quod negotio gerendo instet; nec multum facit tabernae sit praepositus, an cuilibet alii negotiationi. Dig. lib. 14, tit. 3, l. 3. Mr., Bell says, that the charge given to a clerk to manage a store or shop, is called institorial power. 1 Bell's Com. 479, 6th ed.; Ersk. Inst. B. 3, t. 3, 46; 1 Stair's Inst. by Brodie, B. 1, tit. 11, 12, 18, 19; Story on Ag. 8.