6III. THE VALLEY OF THE DELAWARE. (pt. 1)
23XIV. DESCENDING THE RIVER ST. LAWRENCE. (pt. 2)
7III. THE VALLEY OF THE DELAWARE. (pt. 2)
24Volume 5
8Volume 2
25XV. THE OLD BAY STATE.
9IV. CROSSING THE ALLEGHENIES.
26XVI. THE NEIGHBORHOOD OF NARRAGANSETT.
10V. VISITING THE SUNNY SOUTH.
27XVII. THE CONNECTICUT RIVER AND WHITE MOUNTAINS.
11VI. TRAVERSING THE PRAIRIE LAND.
28XVIII. GOING DOWN EAST. (pt. 1)
12VII. GLIMPSES OF THE GREAT NORTHWEST.
29XVIII. GOING DOWN EAST. (pt. 2)
13Volume 3
30Volume 6
14VIII. AROUND THE HARBOR OF NEW YORK.
31XIX. FROM THE OHIO TO THE GULF.
15IX. THE ENVIRONMENT OF LONG ISLAND SOUND.
32XX. THE VALLEY OF THE MISSISSIPPI.
16X. ASCENDING THE HUDSON RIVER. (pt. 1)
33XXI. THE ROCKIES AND PACIFIC COAST. (pt. 1)
17X. ASCENDING THE HUDSON RIVER. (pt. 2)
34XXI. THE ROCKIES AND PACIFIC COAST. (pt. 2)
