Page 35: on page 155 changed to on page 135 Page 36: on page 34 changed to on page 35 Page 53: The lagging plank may be ... changed to The lagging planks may be ... Page 113: (1) changed to (_I_) (2×) Page 117: ... and it in this clearing ... changed to ... and it is in this clearing ... Page 130: as indicated by Fig. 58 changed to as indicated by Fig. 61 Page 136: as indicated in the Fig. 63 changed to as indicated in the Fig. 65 Page 146: as shown by Fig. 63 changed to as shown by Fig. 69 Page 149: underpining changed to underpinning Page 150: Since the roof arch rests for some time ... changed to Since the roof arch rests are for some time ...; as shown by Fig. 66 changed to as shown by Fig. 72 Page 172: illustrated in Fig. 12 changed to illustrated in Fig. 11 Page 175: page 127 changed to page 123 Page 179: as at _b_, Fig. 90 changed to as at _b_, Fig. 97 Page 204: The third type of section is shown by Fig. 116 changed to The third type of section is shown by Fig. 117 Page 218: Malinö changed to Malmö Page 261: Fig. 118 shows the hydraulic jacks changed to Fig. 136 shows the hydraulic jacks Page 282: shown by Fig. 119 changed to shown by Fig. 141 Page 297: towed down to the tunnel side changed to towed down to the tunnel site Page 315: shown in Figs. 141 and 142 changed to shown in Figs. 159 and 160 Page 324: shown by Fig. 148 changed to shown by Fig. 166 Page 338: given on page 50 changed to given on page 55 Page 340: Scloss Matrei changed to Schloss Matrei Page 341: _Time._ changed to =Time.= Page 348, entry Ryder: page number 296 added; Sounstein changed to Sonnstein (2×). End of the Project Gutenberg EBook of Tunneling: A Practical Treatise., by Charles Prelini