| Table of Contents | |
| Section | Page |
| Start of eBook | 1 |
| TRANSACTIONS | 1 |
| APPROXIMATE PRESSURES ON TUNNELS, PER SQUARE FOOT. | 28 |
| FOOTNOTES: | 30 |
| DISCUSSION | 30 |
| 34 | |
| FOOTNOTES: | 52 |
| Table of Contents | |
| Section | Page |
| Start of eBook | 1 |
| TRANSACTIONS | 1 |
| APPROXIMATE PRESSURES ON TUNNELS, PER SQUARE FOOT. | 28 |
| FOOTNOTES: | 30 |
| DISCUSSION | 30 |
| 34 | |
| FOOTNOTES: | 52 |