. The design of the Chicago and Northwestern Railway train shed . fall of snowj which, according to the Weather Bureau Report, amounted to about four and one-half inches, and the press statements indicated thatthe snov/ fall during the winter of 1906-1907, in the vicinity ofNew York exceeded any previous snov; fall v;ithin a period of twentyyears. Even with the ten and one-half inches of snov/, reasonablygood light came through the open smoke ducts, and afforded sufficientlight for the Train Shed. Were it found necessary to sliovel snowfrom the roof of this shed, the smoke ducts will greatly a
. The design of the Chicago and Northwestern Railway train shed . fall of snowj which, according to the Weather Bureau Report, amounted to about four and one-half inches, and the press statements indicated thatthe snov/ fall during the winter of 1906-1907, in the vicinity ofNew York exceeded any previous snov; fall v;ithin a period of twentyyears. Even with the ten and one-half inches of snov/, reasonablygood light came through the open smoke ducts, and afforded sufficientlight for the Train Shed. Were it found necessary to sliovel snowfrom the roof of this shed, the smoke ducts will greatly assist insuch an operation as the snow would not have to be rehandled, butcould be thrown into the smoke duct and dropped in gondola carsplaced on the tracks underneath the smoke duct opening. During thesnov/ storms mentioned very little snow reached the platforms; witha maximum fall of ten and one-half inches, mentioned above, therewras not more than three-eights of an inch of snov/ on any of theplatforms. The drainage from the roof of the Lackawanna Train Shed. is conducted dov-n v/rought iron drain pipes, placed inside of thecast iron coliu:ins, v/ith an insulating air chamber between the in-ner shell of the cast iron column and the outside of the drain reduces the liability of water freezing in the drain pipes,and also places the drain pipes in a location where objectionableappearances are entirely eliminated, as well as the danger of thedrain pipes being knocked dovvH by baggage trucks. The operation of the smoke ducts in the Lackawanna Train Shedat Hoboken, is shown by the illustration. In the center of theroof over each track is a trough or horizontal duct, through whichthe locomotive smoke stack runs, once the locomotive enters thetrain slied. It is built of a pair of light lattice stringers,which are wrapped v/ith expanded metal and encased solidly in con-crete, the surface being floated smooth. The portion of eachmain girder v/here it crosses the opening is a
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