At Omaha we were on the Pacific Railroad proper, and soon upon the plains, at first the larger part cultivated, but barer and drier as we advanced westward, and ascended imperceptibly; so that the next twenty-four hours brought us, with some fine views of the range, to the foot of the Rocky Mountains and a height of 5,000 or 6,000 feet above the sea; that afternoon over the Black Hills of the Platte, 2,000 or 3,000 feet higher, and the highest elevation of the road,--higher than the passes through the Rocky Mountains beyond,--and at nightfall we were traversing the wide grassy Laramie Plains, a vast, sequestered sub-alpine meadow. And when I rose early next morning, we were running through a dry desert “sage brush” (wormwood) region (desert, except for the botanist,--the first plant I saw and clutched proved to be Grayia), the scanty waters of which run into the Colorado of the West and the Gulf of California. Another twenty-four hours, through grand scenery, brought us, after three nights in our car berths, to Ogden, on Salt Lake, where we took a branch road and, skirting the lake along the whole eastern shore, reached Salt Lake City, the Mormon town, before sunset. Here we passed two nights and a day, and enjoyed scenery worth crossing the ocean for, and saw something of the strange life of the district. Back to Ogden; two more nights and days, one long day crossing the Humboldt desert, rendered passable only by the Humboldt River, which, though the ragged mountains all run north and south, yet runs from east to west and marks its course by a narrow line of greenness, and at dusk we saw its end in the Humboldt sink, a lagoon without outlet on the western verge of the basin, against the Sierra, the arid side of which we were ascending all night, to awake among pine forests at sunrise; to breakfast upon the very summit soon after; to descend through most striking scenery into the great valley of California, and, traversing that and the Contra Costa range, to see the head of the Bay of San Francisco at dusk; to cross the bay in a steam-ferry, and reach our hotel in San Francisco at ten P.M.,--a journey full of interest, not a bit monotonous or dull, from first to last. There were fatigues and small discomforts, of course, but these are all forgotten long ago, and the whole transit dwells in memory as one continual and delightful piece of pleasant, novel, ever-varied, and instructive sight-seeing. Of course the identifying at sight, as we flew by, of flowers new to me in the living state, and the snatching at halts, and the physical features of districts which I had always been interested in, and knew much about but had never seen, all gave me occupation and continual pleasure. But it was much the same with all the party. Even the return journey was hardly less interesting....