Conversion equivalents in international trade; weights, measures, gauges, currencies, technical and special units in commerce and industry,

Mode of access: Internet.

Breves apuntes históricos sobre los ferrocarriles de la República Mexicana : algunos comentarios relativos al ancho de las vías férreas y noticia de los ferrocarriles de los Estados Unidos de Norte América y el Canadá /

Mode of access: Internet.

The broad gauge, the bane of the Great Western Railway Company : with an account of the present & prospective liabilities saddled on the proprietors by the promoters of that peculiar crotchet /

Mode of access: Internet.

The broad and the narrow gauge; or, Remarks on the report of the gauge commissioners.

Mode of access: Internet.

Unity of the iron network: showing how the last argument for the break of gauge, competition, is at variance with the true interests of the public.

Mode of access: Internet.

Continued operation of a 25-raingage network for collection, reduction, and analysis of precipitation data for lake michigan diversion accounting : water year 2009 /

"Final Report to U.S. Army Corps of Engineers, Chicago District."