Contributors 34 - 66

• United States. Navy [18]
• Abbot, Henry L. [17]
• Campbell, Albert H. [16]
• Peterson, E. Frank [16]
• Bachmann, John [15]
• American Publishing Co. (Milwaukee, Wis.) [14]
• Norris, Wellge & Co [14]
• Johnson, A. J. [14]
• Mitchell, S. Augustus [13]
• Sholl, Charles [13]
• Burr, David H. [13]
• Western and Atlantic Railroad Company [12]
• Koch, Augustus [12]
• Brosius, H. [12]
• Fremont, John Charles [12]
• Tanner, Henry Schenck [12]
• Geological Survey (U.S.) [12]
• Warren, G. K. [12]
• Ruger, A.] [11]
• United States. Army of the Potomac. Engineer Dept [11]
• Boyd, William Henry [11]
• Magnus, Charles [11]
• Beers, D. G. [11]
• Cram, George Franklin [11]
• Maury, Matthew Fontaine [11]
• Blakeslee, G. H. [11]
• Mccerren, Landry & Powell [11]
• Louis Prang and Company [10]
• United States. War Dept. Engineer Bureau [10]
• United States. General Land Office [10]
• Corbett, V. P. [9]
• Chace, J. [9]
• Beers, F. W. [9]