Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. It was originally our intention to confine this treatise solely to underground haulage, but while preparing the same we received so many inquiries about wire rope tramways that we considered the subject but incompletely treated without describing this method of over ground transportation, which in many mining districts already plays an important part, and promises with every year to become more and more extended.