5025 x 3350 px | 42,5 x 28,4 cm | 16,8 x 11,2 inches | 300dpi
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Illustrated travels a record of discovery geography and adventure edited by h w bates assistant secretary of the royal geographical society with engravings from original drawings by celebrated artists cassell petter and & galpin London paris new york. Long Toms were used in the Cari boo Gold Rush and the California Gold Rush. The long tom looks like a sluice box, but bigger. Measuring 12 to 15 feet long, it was mainly made of wood, with a metal bottom, and with a ripple box and sieve at the end. It is put up on a slight incline. Six to eight men have to work a long tom to fully utilise it. One man shovels dirt and makes sure that the water is running. Another man mixes water and dirt and takes out the big stones. At the end of the day, the dirt is taken out and washed in a pan. It was a useful in the mining days, it was also expensive. This method was popular in the California Gold Rush. Bigger sluice boxes sometimes called "long tom" (also called 'bigger sluce box', 'bigger sluice', or 'bigger sluice') were used in the Klondike Gold Rush, the Cariboo Gold Rush, the Fraser River Gold Rush, and the California Gold Rush. Smaller sluice boxes were used in the Klondike Gold Rush. The smaller sluice box was like a rocker (sometimes called cradle), only longer and heavier. It separated gold from mud and muck. It has an upper tray, and a bottom part called a sluice. Materials are first shoveled into the upper tray. Water is then added to flush down everything. The materials slide down the upper tray along with the water, into the riffles, and the rocks gets removed in the process. After that, there is a clean-up, and the pay dirt gets removed. Next, the pay dirt is gold-panned. An optional addition to the sluice box was the 'grizzly'. It was a triangular shaped wooden object with riffles in it and, was used to stop large objects from entering sluiceThe rocker box was one of the primary tools used to separate gold from paydirt.
