91) Caption reads:  New York Central's Mercury, a K-5b.  (From the promotional booklet, "Active Locomotives Equipped For Economy With Firebars", © 1940 by Waugh Equipment Co)

92) Caption reads:  The streamlined Mercury leaves Cleveland's skyscraper terminal, Union Station. The tender of the ultramodern engine carries enough water, 15,000 gallons, to supply an average family for ten weeks, and enough coal, 16 tons, to heat a suburban home for the winter.  (From The National Geographic Magazine, Nov 1936; photo by J Baylor Roberts)

93) Caption reads:  Reading's rebuilt G-1sas Pacific 118 accelerates the afternoon eastbound Crusader through Ewing NJ. Dressed-up Pacifics looked smoother than they rode, and called upon all of a fireman's experience.  (From Trains Magazine, Aug 1968; photo by W R Osborne)

94) Caption reads:  The Firefly, fast Frisco streamliner.

95) Caption reads:  Lehigh Valley's The John Wilkes, a Class K-5.  (From the promotional booklet, "Active Locomotives Equipped For Economy With Firebars", © 1940 by Waugh Equipment Co)

96) Caption reads:  A Milwaukee Road Class K-7.  (From the promotional booklet, "Active Locomotives Equipped For Economy With Firebars", © 1940 by Waugh Equipment Co)

97) Caption reads:  Union Pacific RR #2906.  (From the promotional booklet, "Active Locomotives Equipped For Economy With Firebars", © 1940 by Waugh Equipment Co)

98) Caption reads:  Magnanimously lettered "American Railroads", Pennsy's S1 6-4-4-6 #6100 was in steam and revolved her 84-inch drivers on rollers for visitors during the 1939 New York World's Fair.  (From Trains Magazine, Nov 1975; photo by T F Clarke)

99) Caption reads:  Santa Fe's second largest Hudson design is the 3460 Class. This one was built with a baby-blue stream-lined cowl.

100) Caption reads:  The zenith of North Western steam power was reached in beautiful Hudsons like this 4008, which incorporated all the developments in steam locomotives.  (From "The Bulletin of the National Railway Historical Society, Vol 28, No 2, 1963"; photo by F H Stringham)