Chapter XXIII

289. Evolution of the Locomotive 363
290. Increase of Locomotive Weight and Rate
of Combustion of Fuel 365
291. Principal Parts of a Modern Locomotive 366
292. The Wootten Fire-box and Boiler 367
293. Locomotives with Wootten Boilers 370
294. Recent Improvements in Locomotive Design 372
295. Compound Locomotives with Tandem Cylinders 373
296. Evaporative Efficiency of Different Rates of Combustion 375
296_a_. Tractive Force of a Locomotive 376
297. Central Atlantic Type of Locomotive 378
298. Consolidation Engine, N. Y. C. & H. R. R. R. 379
299. P., B. & L. E. Consolidation Engine 380
300. L. S. & M. S. Fast Passenger Engine 381
301. Northern Pacific Tandem Compound Locomotive 382
302. Union Pacific Vauclain Compound Locomotive 384
303. Southern Pacific Mogul with Vanderbilt Boiler 384
304. The “Soo” Decapod Locomotive 385
305. The A., T. & S. F. Decapod, the Heaviest Locomotive
yet Built 386
306. Comparison of Some of the Heaviest Locomotives in Use 389