"I came up next with a group of three Sonomeans, or inhabitants of Sonoma, busily engaged on a small sandy flat--the only one I had observed--at the bottom of the ravine. There was no water near, although I noticed several holes which had evidently been sunk in quest of it. These men were actively pursuing a process that is termed 'dry-washing.' One was shovelling up the sand into a large cloth, stretched out upon the ground, and which, when it was tolerably well covered, he took up by the corners, and shook until the pebbles and larger particles of stone and dirt came to the surface. These he brushed away carefully with his hand, repeating the process of shaking and clearing until the residue was sufficiently fine for the next operation. This was performed by the other men, who, depositing the sand in large bowls hewn out of a solid block of wood, which they held in their hands, dexterously cast the contents up before them, about four feet into the air, catching the sand again very cleverly, and blowing at it as it descended. This process being repeated, the sand gradually disappeared, and from two to three ounces of pure gold remained at the bottom of the bowl. Easy as the operation appeared to me to be, I learned, upon inquiry, that to perform it successfully required the nicest management, the greatest perseverance, and especially robust lungs. The men I saw had lighted upon a productive sand; but very often, indeed, those who adopt this mode of gold washing toil long at barren soil before they discover the uselessness of laboring thus arduously.
"I noticed, that although the largest proportion of the gold obtained in this manner presented the appearance of a fine powder, it was interspersed, here and there, with large scales of the precious deposit, and with a few solid lumps. The metal was of a dingy hue, and, at a cursory view, might easily have been mistaken for particles of yellow clay, or laminæ of stone of the same color. The Sonomeans placed the product of their labor in buckskin bags, which were hung around their necks, and carefully concealed inside of their shirts. They work in this fashion at the mines in their own country; but I doubt if any other than a native constitution could very long bear up against the peculiar labor of 'dry-washing' in such a climate and under such difficult circumstances. I felt half tempted to try the process myself, for the surface of this sandy bed was literally sparkling with innumerable particles of the finest gold, triturated to a polish by the running of the waters--as I conjectured; but I soon discovered how fruitless my efforts would be. Had I possessed any chemical agents at hand, however, I might soon have exhausted the bed of its precious contents, and should, doubtless, have realized an immense weight of the metal of the very purest quality.