10. Accurately ascertain and locate the corners of the established boundaries of counties, towns, cities and villages and, where townships were originally subdivided into lots to accurately ascertain and establish such lot corners if any such corners will be located within the bounds of the improved part of any state or county highway or county road.
If the county superintendent shall not be a civil engineer he may hire a competent civil engineer to locate such corners. In either case he may employ such other assistants as may be necessary, the cost and expense thereof to be a county charge.
Nothing in this subdivision contained, however, shall be construed to extend to the location of the corner or other boundaries of city, or village lots, or farm lands, except as they may be, incidentally, the corners of the boundaries of counties, towns, cities, villages or original subdivisions of towns, except, also, that where the corners or boundaries of city or village lots, or farm lands, have been located and a monument placed before the improvement of such highway, the owner of such city or village lots or farm lands may point out to such engineer the location of such monument, and upon such owner furnishing a suitable monument, it shall be the duty of such engineer to erect such monument in the manner heretofore provided.