Page:The Journal of geology (IA journalofgeology11893univers).pdf/38

This page has been proofread, but needs to be validated.
464
THE JOURNAL OF GEOLOGY.

on the Duluth, South Shore and Atlantic Railroad, gives a good idea of the method employed in handling large quantities of ore. The different modes of occurrence of the copper of Michigan are shown by a number of well selected specimens; while the copper in ingots, sheets and wire is well displayed. Interesting wooden models are given of the shaft house and mills of the Calumet and Hecla mine, and of the rock and shaft house of the Tamarack mine. Other interesting features of the exhibit are a number of pre-historic copper implements from Michigan, and arches and columns of brown sandstone produced in the state.

The Wisconsin exhibit contains some good material, but it seems to be arranged more to give prominence to fine specimens than to show systematically the products of the state. The lead and zinc industries of the southwestern part of the state are well represented, but the great iron interests of the northern part of the state are neglected, one pile of ore indefinitely marked "iron ore" and a few other odd specimens being all that are displayed. Some good specimens of granite and columns of red sandstone are also exhibited. In addition, various mineral specimens are displayed, some of which have come from other localities than Wisconsin, and are therefore misleading to the uninitiated.

Minnesota confines its exhibit almost entirely to its greatest mining industry, i. e., the iron of the northern part of the state, and in this department the exhibit is very good. Some building stones and a few mineral specimens are also displayed. A wooden model of the Chandler mine, and a number of maps showing the mines and the geology of the state also form a part of the exhibit.

Iowa makes a small but fairly characteristic exhibit, consisting mostly of coal, building stones, etc. A feature of the exhibit is an artificial "drift" in a coal mine, showing the mode of working and transporting coal on underground tramways. A model of a coal shaft and breaker is also given.

The Missouri exhibit is excellently arranged, and is thoroughly indicative of the resources of the state. The lead, zinc and iron industries are well represented, and pig lead and

This article is issued from Wikisource. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.