21. Geological Map of Part of Northern Alberta and portions of the Districts of Assiniboia and Saskatchewan [Material cartográfico] : North West Territory

22. Georgetown quadrangle, Kentucky

23. Gênes H. 09 [Material cartográfico]

24. Lathrop quadrangle, California (San Joaquin county)

25. Louisville quadrangle, Kentucky

26. Manteca quadrangle, California (San Joaquin county)

27. Map showing wooded and prairie tracts &c. in part of Northern Alberta and portions of the Districts of Assiniboia and Saskatchewan, North West Territory [Material cartográfico]

28. Mare Island quadrangle, California

29. Milan H. 06 [Material cartográfico]

30. Mount Airy quadrangle, Maryland

31. Neuer Grundriss der Chursaechss und Handels Stadt Leipzig [Material cartográfico]

32. Nouvelle Carte de partie des Côtes de Terre Ferme et Isles situees sur L'Ocean [Material cartográfico] : Comprises entre le Tropique du Cancer et le Parallele de 52 Degrez 35 Minutes

33. Oakdale quadrangle, California (Stanislaus county)

34. Oceanside sheet, California (San Diego co.)

35. Parachute Creek quadrangle, Colorado

36. Paulsell quadrangle, California (Stanislaus county)

37. Perryville quadrangle, Missouri

38. Polo quadrangle, Missouri

39. Rockville quadrangle, Maryland Virginia

40. Seneca quadrangle, Maryland Virginia