Rights & Permissions; Homework
Notes: You can search using your pdf viewer's "Find" command with limited accuracy, even though the book will be displayed as original page images. If the text is too small or too large, use the "Zoom in Tool" to adjust the text size. To view details in the fabulous locomotive diagrams in the appendices, zoom to 200%.
Courtesy Robert L. Spude, Ph.D., Historian, National Park Service.