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EXHIBITS IN MINES AND MINING BUILDING.
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ful rubidolite, or pink tourmaline, are displayed at the entrance. Elsewhere in the building is a fine and beautiful exhibition of the so-called "onyx" from New Pedrara, in Southern California.

Besides the California exhibit in the Mines and Mining Building, an interesting collection of the mining products of the state, especially gold ores and native gold, are contained in the California state building. Somewhat similar specimens, however, are in the Mines and Mining Building, so that the division of the collection in this case is not especially injurious.

Among the foreign collections, that of New South Wales stands preëminent. The great mining wealth of this province is exhibited in a very systematic and thorough manner, and an excellent idea is given of the resources of the region. There is no attempt at a display of a sensational character as is seen in some of the exhibits, but everything is shown in a plain business way, in large quantities and in properly selected samples. Among the most prominent features of the exhibit are its tin, gold, silver, lead, antimony, copper, iron, manganese, and chromium ores, its coal, graphite, building stones, etc. The ores exhibited are average samples such as are sold in the market, and therefore give a true idea of the deposits represented. In many cases, as in antimony, tin, etc., the metals are exhibited in blocks or pigs, with the ore from which they are derived. The ores of the great Broken Hill silver mine and the statistics of its production are of interest to those acquainted with this famous mine. The exhibit of the tin industry is of great interest as representing the development of this comparatively new tin region, which has only been much developed since 1872; while the coal exhibit shows not only the bituminous coal of the region, but also the kerosene shales, etc.

Among some of the other foreign exhibits those of the provinces of Ontario and Quebec are very good, showing as they do the various products of those provinces in a thorough and systematic order. The other provinces of Canada do not make such good exhibits. A collection of the rocks of Canada by the Geological Survey is of great interest. Mexico exhibits a great

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