Map and profiles of New-York State canals / designed under direction of Van Rensselaer Richmond, State Engineer & Surveyor, to accompany his report for 1858.New York (State). State Engineer and Surveyor1858"In examining these profiles be governed by figures, not by scale. The scales, horizontal and vertical, being too small to place the locks in accurate position in several places."Ms. markings. ImperfecRelief shown by contours and hachures.cartographic