Since the power to restrict boundaries is legislative in nature, territory which has once become part of an incorporated community can be detached only by the authority of a statute, and the corporation, the courts, and even the people are powerless to act unless so authorized. 1. DILLON, MUNCIPAL CORPORATIONS, 4th ed. sec. 356. But when the town is booming and each farmer sees himself swept into wealth by the subdivision and sale of his property, who worries about detaching land? It is only when the boom has passed and the farmer finds himself still engaged in agriculture, and burdened with city taxes that he becomes intensely interested in the question by whom and under what conditions his land may be detached.