21. Bullfrog Special Map, Nevada (Nye county)

22. Butte Special Map, Montana

23. Butte Special Map, Montana (Silver Bow Co.)

24. Cannelton quadrangle, Kentucky Indiana

25. Carbona quadrangle, California

26. Catalogue of the splendid library (imported from Paris) of a distinguished collector : wich will be sold by auction by Mr. Evans at his house, No. 93, Pall Mall, on Tuesday, May 12 ..., 1835

27. Catalogue of the splendid library of an illustrious foreign personage ... : which will be sold by auction, by Mr. Evans at his house, no. 93, Pall Mall, on Monday March 21, and four following days, 1831

28. Catfish Lake quadrangle, Louisiana (Cameron parish)

29. Chain Lakes quadrangle, Maine

30. Chief Mountain quadrangle, Montana

31. Claremore quadrangle, Indian Territory (Chickasaw Nation)

32. Colorado Springs quadrangle, Colorado

33. Compilación de enunciados de política sobre recursos naturales renovables para Panamá

34. Coopers Lake quadrangle, Montana

35. Creede and vicinity, Colorado (Mineral, county)

36. Cuatro nombres y un hombre: Avelino Urzúa

37. Dalton sheet, Georgia Tennessee

38. Dardanelles quadrangle, California

39. Delhi quadrangle, New York

40. Determinación de la edad del equino F. S. inglés de carrera en base a algunas características dentarias, del nacimiento hasta los 18 años