On the last night of December they built a gigantic bonfire of whole trees, and welcomed in the new year by the light of its leaping flames.

They had passed through vast tracts of wonderful fertility and beauty, unknown to white men, and through regions abounding in game that they had no time to hunt. From the summit of the Aztec Pass they had gazed, with dismay, over the boundless expanse of the Black Forest, and then had plunged into its dark depths. They had threaded their way through labyrinths of precipitous cañons, the walls of which rose thousands of feet above their heads, and had known of others still more tremendous.

They had waded through the snows of the San Francisco Mountains, and revelled in the warmth and beauty of the superb Val de Chino, where snow and ice are unknown. They had dodged the crashing boulders hurled down on them in Union Pass by the Hualapi Indians, posted on the inaccessible heights far above them. Here they had lost a wagon, crushed to splinters by one of these masses of rock; but no lives had been sacrificed, and their number was still the same as when they left the Rio Grande. Now they were on the bank of the Colorado, with only one desert and one range of mountains yet to cross. These seemed so little, after all they had gone through; and yet that desert alone was two hundred and fifty miles wide. Two hundred and fifty miles of sand, sage-brush, and alkali; the most barren region of country within the limits of the United States. If they could have looked ahead and seen what the crossing of that desert meant, they would have entered upon the undertaking with heavy hearts and but faint hopes of accomplishing it. How fortunate it is that we cannot look ahead and see the trials that await us. We would never dare face them if they should all appear to us at once; while, by meeting them singly, and attacking them one by one, they are overcome with comparative ease.

But neither Glen nor his companions were thinking of the trials ahead of them as they came in sight of the Colorado River. They were only thinking of those left behind, and what a glorious thing it was to have got thus far along in their tremendous journey. The transit-party had run their line to the river's bank and gone to camp a mile or so below, when the levellers came up, and Glen held his rod, for a final reading, at the water's edge.

He had just noted the figures in his book, and waved an "All right" to "Billy" Brackett, when he was startled by a rush of hoofs and a joyous shout. The next instant a horse was reined sharply up beside him, while its rider was wringing his hand and uttering almost incoherent words of extravagant joy at once more seeing him.


Chapter XXXVII.

A PRACTICAL USE OF TRIGONOMETRY.

It was Binney Gibbs who had come up the river from Fort Yuma several days before, with General Elting, to meet the second division, and guide them to "The Needles," the point at which the line was to cross the Colorado. The other divisions, which had followed the Gila route, and crossed the Colorado at Fort Yuma, where the desert was narrower, had reached the Pacific ere this, and gone on to San Francisco. The hardest task of all, that of running a line over the desert where it was two hundred and fifty miles wide, had been reserved for Mr. Hobart's men, who had proved themselves so capable of enduring and overcoming hardships.

Binney had waited impatiently in camp until the transit-party reached it, expecting to see Glen ride in at its head with the front flag. Then he had borrowed a horse, and set forth to find the boy whom he had once considered his rival, but whom he now regarded as one of his best friends.