K 192. P. R. R. Tunnels, N. R. Div. Sect. K. (Bergen Hill Tunnels.) South Tunnel completed, looking east from Sta. 822+25, showing walks on top of bench walls.
A long one- CP Rail's Spiral Tunnels in the Rockies is one of the longest railway tunnels in the world. Built in 1908, it is constructed in such a way that as the end of a long train enters the tunnel, the front will be exiting underneath it or...
On back: "The Pennsylvania Station covers the entire area from Seventh to Eighth Avenues and 31st to 33rd Streets. It is connected with New Jersey by twin tunnels under the Hudson River. 60 feet below the surface also connected with Long Island by...
Table of Contents: Production and Prices; Home Decoration; Shabby Bags Renewed; Dynamite Razes School House; Fabrikoid in the Railway Field; Field Shooting and Hunting Dogs; Safety and Saving in Firing Blasts in Shafts and Tunnels; Auto Accessories...
Periodicals; Chemical industry; Explosives; Dynamite;
Table of Contents: DuPont Gelatin Blasts Tunnels Under the Mississippi; Dynamite Extinguishes Mine Fire; The Blast Heard 'Round the World; Practical Explosives' Efficiency; DuPont Blasting Gelatin Not Low Freezing; Foresight and Hindsight; Lighting...
Table of Contents: The cavalcade of America; Ten times acclaimed; At the sign of Dulux; Rail and water tunnels; New products in an old setting; It's not just baloney; Bornot's progress; Let there be light.
Caption: "The mine cars which carry newly mined Reading Anthracite from the working places to the surface of preparation pass through these tracked tunnels beneath the surface. The gangways are maintained as carefully as is the way on any railroad."
Typed caption on photo: "F.D. Bickel (left) of the DuPont Company and Jack Buchanan, Northern Construction Company superintendent, study the loading chart of a coyote tunnel in the north pinnacle of Ripple Rock. Shortly thereafter, in the greatest...
Typed caption: "Long a menace to navigation, Ripple Rock used to lie in Seymour Narrows, above, 120 miles northwest of Vancouver, British Columbia. If the peaks of the rock had been visible they would have appeared directly above the freighter's...
