Subject

• Excerpts. 7
• Notebooks. 7
• References 7
• Copies. Derivative objects. 2
• Lists. 2
• Accounts. 1
• Documents. 1
• Letters. Correspondence. 1
• Maps. Cartographic materials. 1
• Marine charts. 1
• Photographs. 1
• Plans (drawings). 1
• Plans (orthographic projections). 1
• Plans. Maps. 1
• Prints. Visual works. 1
• Reductions. Copies 1
• Reports. 1
• Returns. Military reports. 1
• Sections. Orthographic projections. 1
• Sketches. 1
• Topographic surveys. 1
• Tracings. Drawings. 1
• Visiting cards. 1