It is interesting, looking at these two pages, to see the large number of Consolidations, and the relatively small number of cab-forwards at this time, and only five A-B-B-A sets of F units. That would change as dieselization proceeded, because the new F units were preferentially assigned at first in desert and mountain regions, where their tractive effort and absence of water consumption made them big advances over steam power. Meanwhile, the displaced steam gradually migrated into California on the lesser gradient areas, including Coast Division.
Translation: Es interesante ver estas dos páginas y ver la gran cantidad de consolidaciones y el número relativamente pequeño de cab-forwards en este momento, y solo cinco conjuntos A-B-B-A de unidades F. Esto cambiaría con el progreso de la dieselización, porque los nuevos F se asignaban preferentemente en regiones áridas y montañosas
Translation: It is interesting to see these two pages and see the large number of consolidations and the relatively small number of cab-forwards at this time, and only five sets A-B-B-A of units F. This would change with the progress of dieselization, because the new F were assigned preferentially in arid and mountainous regions where cab-forwards were not as useful.


Translation: Es interesante ver estas dos páginas y ver la gran cantidad de consolidaciones y el número relativamente pequeño de cab-forwards en este momento, y solo cinco conjuntos A-B-B-A de unidades F. Esto cambiaría con el progreso de la dieselización, porque los nuevos F se asignaban preferentemente en regiones áridas y montañosas
 donde los cab-forwards no eran tan útiles.

Translation: It is interesting to see these two pages and see the large number of consolidations and the relatively small number of cab-forwards at this time, and only five sets A-B-B-A of units F. This would change with the progress of dieselization, because the new F were assigned preferentially in arid and mountainous regions where cab-forwards were not as useful.