This term is strictly applicable to any person who enters into a contract, (Kent v. Railroad Co., 12 N. Y. 628,) but is commonly reserved to designate one who, for a fixed price, undertakes to procure the performance of works on a large scale, or the furnishing of goods In large quantities, whether for the public or a company or individual, (McCarthy v. Second Parish, 71 Me. 318, 36 Am. Rep 320; Brown v. Trust Co., 174 Pa. 443, 34 Atl. 335.)