The box work in Crystal Cave is not of such great abundance as to demand special attention, but is very beautiful, and one variety deserves particular mention. These boxes have been formed in dark red sandstone, and after being emptied of their original contents, have been completely filled with colorless calcite crystals, and over this is spread an outer surface of the same crystals tinted a brilliant flame color by red paint-clay having been taken in solution by the crystal forming waters. A specimen of this was a temptation too great to be resisted even in the owner's absence. Some of the box work is of such size that a single box may have a capacity equal to that of a bushel measure, but it is less beautiful than the smaller forms. On the following morning we left Piedmont, and having a desire for greater personal knowledge of the Hills, took the same train which had taken us to the cave, and traveled to its western terminus, Lead City. The interesting scenery makes this a desirable trip for any one visiting the Hills, but its beauty is chiefly massed at the ends, the middle distance being over gradually rising ground, which is without a counterpart of the rocky canon left behind or more than a suggestion of the high hills yet to come. The special charm of this portion was the magnificent pine forest which covered it until three years ago, when it was swept by a terrible fire, from which the settlers escaped with only their lives; and even that would have been impossible if the railroad company had not kept refuge trains waiting for them just ahead of the flames. The prominent geological feature here is the porphyry dikes, which are becoming more numerous and more prominent, and in many places resemble a conspicuous group near Harney Peak, called The Needles. These dykes are of special interest in connection with a study of the caves, since they are probably of simultaneous origin. The same volcanic movements that caused the violent upheaval of the whole region, and thrust up molten masses through the strata to form a central core to the Hills, must also have rent the nearby regions with fissures through which probably much gas escaped, and having been further opened and then adorned, now demand our attention as caves of unique and curious beauty. The approach to Lead is over the hill-tops with a magnificent distant view, and the first glimpses of that young city famous for having as a center the Homestake mine, the largest gold mine in the world, are charming. It is situated far down in a valley among the high hills and spreads some distance up the surrounding slopes.