We went the distance leisurely, consuming four days to Mariposa, for we stopped here and there to sketch, "peep, and botanize"; besides, we were dragging with us a Jersey wagon, bought second-hand in Stockton, in which we carried our heavier outfit till we should get our extra pack-beasts at Mariposa, and to which we had harnessed for their first time an implacable white mule with an incapable white horse, to neither of which each other's society or their own new trade was congenial. I shall not linger here as we did there. To an ornithologist the whole road is interesting,--especially to one making a specialty of owls. The only game within easy reach is the dove and the California ground-squirrel,--a big fellow, much like our Northeastern gray, barring the former's subterranean habits. On the plains threaded by the road the pasture is good, save in the extremest drought of summer, when the great herds which usually feed at large on and between the river-bottoms are driven to the rich green grass in the high valleys of the Sierra,--or ought to be: many cattle died along the San Joaquin last summer for want of this care. Occasionally the road winds through the refreshing shadow of a grove of live-oaks, standing far from any water on a sandy knoll. But the most magnificent trees of the oak family that I ever beheld were growing on the banks of the Tuolomne River, where we forded it at Roberts's Ferry. They were not merely in dimension superior to the finest white-oaks of the East, but surpassed in beauty every tradition of their genus. Their vast gnarled branches followed as exquisite curves as belong to any elm on a New-England meadow, and wept at the extremities like those of that else matchless tree,--possessing, moreover, a sumptuous affluence of leafage, an arboreal _embonpoint_, unknown to their graceful sister of our lowlands. Be sure that we lingered long among their shadows with book and pencil, and look for a desirable acquaintance with new Dryads when they grow into the life of color from our artists' hands. At Princeton, a thriving suburb of Mariposa, we completed our cavalcade of pack-animals, transferred our wagon-load to their backs, (the average mule-pack weighs from two hundred and fifty to three hundred pounds,) roped it there in the most approved _muletero_-fashion, and started into the wilderness. Let us call the roll. Beside Bierstadt and the two other gentlemen who with myself had formed the original overland-party, we numbered two young artists of great merit now sojourning for a short time in California, Williams, an old Roman, and Perry, an ancient Duesseldorf friend,--also a highly scientific metallurgist and physicist generally, Dr. John Hewston of San Francisco.