| Page 1 - | Cover, "Triumph of Railroad Engineering, Architecture and Construction" | jpg (760x1120 - 91K) |
| Page 2 - | "The Pennsylvania Railroad Tunnels, by William Wirt Mills | jpg (760x1151 - 128K) |
| Page 3 - | Photos of PRR principals involved with the tunnels | jpg (760x1127 - 64K) |
| Page 4 - | Hudson River tunnel plan and profile drawings | jpg (760x1119 - 73K) |
| Page 5 - | Photo of the Jersey Portal under construction | jpg (760x1125 - 74K) |
| Page 6 - | Photo of the Weehawken shaft during construction | jpg (760x1118 - 61K) |
| Page 7 - | Hudson River tunnel cross section drawing | jpg (760x1122 - 63K) |
| Page 8 - | Photos of tube construction | jpg (760x1117 - 72K) |
| Page 9 - | Photos of tube construction, joining the last ring | jpg (760x1128 - 61K) |
| Page 10 - | Photos of tube construction, lining, waterproofing and laying ducts | jpg (760x1126 - 62K) |
| Page 11 - | Photos of excavation for Penn Station | jpg (760x1145 - 73K) |
| Page 12 - | Map of Plan of Tunnel System | jpg (760x1122 - 87K) |
| Page 13 - | Map of Plan of Tunnel System (cont) | jpg (759x1121 - 115K) |
| Page 14 - | Photo of Penn Station | jpg (760x1123 - 73K) |
| Page 15 - | Photos of station excavation, tunnel under 5th Ave, and loading scows | jpg (760x1129 - 74K) |
| Page 16 - | Photo of Power House in Long Island City drawing of Portal of East River Tunnel. | jpg (760x1112 - 68K) |
| Page 17 - | drawings of Hell Gate Bridge | jpg (760x1130 - 82K) |
| Page 18 - | "Hudson Tunnel System" | jpg (760x1120 - 123K) |
| Page 19 - | Photos of Hudson & Manhatten RR tunnel principals | jpg (760x1115 - 65K) |
| Page 20 - | Photos of hospital air-lock and break through of tunnel | jpg (760x1120 - 63K) |
| Page 21 - | Drawing of tube cross section and NY street cross section. | jpg (760x1126 - 76K) |
| Page 22 - | Drawing of Church Street Terminal underground | jpg (760x1108 - 76K) |
| Page 23 - | Photo of Church Street Terminal | jpg (760x1119 - 69K) |
| Page 24 - | rear cover, "Construction of Hudson River Tunnels" | jpg (760x1119 - 95K) |
