Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910, The North River Tunnels. Paper No. 1155Note N — River Tunnels. (continued 2)Reading editionIncluding time for jacks.◇Copy noteReturn to River Tunnels. (continued 2)Return to River Tunnels. (continued 2)Return to River Tunnels. (continued 2)Return to River Tunnels. (continued 2)Return to River Tunnels. (continued 2)Return to River Tunnels. (continued 2)Return to River Tunnels. (continued 2)