Johns Hopkins UniversityNell, LouisU.S. Coast and Geodetic SurveyWebster, Albert LDepths shown by soundings and isolines. "Contours in water one fathom apart." 1 map: col., mounted on cloth; 60 x 60 cmJPEG8542d744-d4ee-4b80-aad6-2d44a0a193f0engPublicBaltimore and its neighborhood: an excursion map; compiled for the Johns Hopkins University; based upon the triangulation of the U.S. Coast and Geodetic Survey and published maps of local surveys; edited by Albert L. Webster; drawn by Louis Nell.MapsMaryland--BaltimoreMaryland1884University of Michigan