In like manner the electric flat-iron will smoothen her linen without fatiguing her. But not only the lady of the house will rejoice; also the poor, hen-pecked husband will be in transports of delight, as it will make his path easier in many ways. The constant complaints he was hitherto obliged to endure, will grow mute for ever, and the curtain lecture will be no more. Furthermore, should circumstances compel the active business man to part with his wife for a long time, the marvelous inventions enable their mutual intercourse during the separation as if time and space were unknown factors. The lady need not suffer long from inquietude concerning her husband's safe arrival; for the receiving instrument of her telautograph reproduces instantaneously his own handwriting. A parcel, sent to her by express, contains a cylinder to the improved phonograph. When bringing it in proper contact with this wonderful instrument, she hears her consort's voice, just as if he was by her side, and a thousand leagues were but a few inches. Moreover, Edison's kimetograph portrays the beloved features of her absent spouse. She is now perfectly consoled; for the radiant expression of his countenance manifests health and happiness. Having left the imposing Electricity Building, we repaired to a structure in close proximity dedicated to exhibits of the mineral kingdom. Never before, the records of international expositions gave account of a similar fact; namely, that the display made of MINES AND MINING was so capacious as to require the erection of a special edifice. Its size and architectural beauties rivaled those of the great structures in Jackson Park. The magnificent arched entrance of the north front was richly embellished with sculptural decorations emblematic of mining and its allied industries. This spacious gateway led us to the main floor, which presented a spectacle so weird that its impression cannot be easily effaced. In temples and pavilions of ineffable gorgeousness were exhibits of gems and precious metals of dazzling beauty. Useful ores and their products, building stones, soils, salt, petroleum--indeed, everything that man furthers from the dark entrails of the earth, was offered to inspection. Besides the mineral resources of the world in their original state, the displays embraced many devices of mining machinery; such as pumps and engines used in mining, moving, and delivering ores; apparatuses for breaking out ore and coal; for crushing and pulverizing; for reducing metals, for instance the extraction of gold and silver by milling, lixiviation, and fire; furthermore, boring and drilling tools; grinding and polishing substances, etc. The galleries containing especially the metallurgical collection, had the appearance of the scientific department of a museum combined with the laboratory and library of a university.