"There lies the Great Divide."

For two hours they wound steadily upward, the massive rocks towering on all sides, barren, grotesque in form, but beautiful in coloring,—dull reds, pale greens, and lovely blues and purples staining the sombre grays and browns.

Darrell had grown silent, and his companions, supposing him absorbed in the grandeur and beauty of the scenery, left him to his own reflections while they talked on matters of interest to themselves.

But to Darrell the surrounding rocks were full of a strange, deep significance. The colorings and markings in the gray granite were to him what the insignia of the secret orders are to the initiated, replete with mystical meaning. To him had come the sudden reali

zation that he was in Nature's laboratory, and in the hieroglyphics traced on the granite walls he read the symbols of the mysterious alchemy silently and secretly wrought beneath their surface. The vastness of the scale of Nature's work, the multiplicity of her symbols, bewildered him, but in his own mind he knew that he still held the key to this mysterious code, and the knowledge thrilled him with delight. He gazed about him, fascinated, saying nothing, but trembling with joy and with eagerness to put himself to the test, and it was with difficulty that he controlled his impatience till the long ride should come to an end.

At last they left the canyon and followed a steep road winding up the side of a mountain, which, after an hour's hard climbing, brought them to the mining camp. As the carriage stopped Darrell was the first to alight, springing quickly to the ground and looking eagerly about him.

At a short distance beyond them the road was terminated by the large milling plant, above which the mountain rose abruptly, its sides dotted with shaft-houses and crossed and recrossed with trestle-work almost to the summit. A wooden flume clung like a huge serpent to the steep slopes, and a tramway descended from near the summit to the mill below. At a little distance from the mill were the boarding-house and bunk-houses, while in the foreground, near the road was the office building, to which the party adjourned after exchanging greetings with Mr. Hathaway, the superintendent, who had come out to meet them and to whom Darrell was duly introduced. The room they first entered was the superintendent's office. Beyond that was a pleasant reception-room, while in the rear were the private rooms of the superintendent

and the assayer, who were not expected to share the bunk-houses with the miners.

Mr. Underwood and the superintendent at once proceeded to business, but Mr. Britton, mindful of Darrell's comfort, ushered him into the reception-room. A coal-fire was glowing in a small grate; a couch, three or four comfortable chairs, and a few books and magazines contributed to give the room a cosey appearance, but the object which instantly riveted Darrell's attention was a large case, extending nearly across one side of the room, filled with rare mineralogical and geological specimens. There were quartz crystals gleaming with lumps of free-milling gold, curling masses of silver and copper wire direct from the mines, gold nuggets of unusual size and brilliancy, and specimens of ores from the principal mines not only of that vicinity, but of the West.

Observing Darrell's interest in the contents of the case, Mr. Britton threw open the doors for a closer inspection, and began calling his attention to some of the finest specimens, but at Darrell's first remarks he paused, astonished, listened a few moments, then stepping to the next room, called Mr. Underwood. That gentleman looked somewhat perturbed at the interruption, but at a signal from Mr. Britton, followed the latter quietly across the room to where Darrell was standing. Here they stood, silently listening, while Darrell, unconscious of their presence, went rapidly through the specimens, classifying the different ores, stating the conditions which had contributed to their individual characteristics, giving the approximate value of each and the mode of treatment required for its reduction; all after the manner of a student rehearsing to himself a well-conned lesson.