Richest of all are the quartz mines, where beautiful white rock, rich with sparkling gold, is found in veins, or "lodes," cropping out of hillsides or dipping down under the earth. The great "Mother-lode" of our state runs like an underground wall across Amador, Calaveras, Tuolumne, and Mariposa counties and has been traced for eighty miles. Some poor miner usually finds a ledge of quartz-rock and digs down the way the ledge goes. He puts up a windlass, worked by hand, over the well-like hole he has dug out, and hoists the ore out in buckets. But he soon finds, as the hole or shaft goes deeper, that he must timber the sides to keep them from caving in, that he must have an engine to raise the ore and a mill to crush the hard rock. So he sells out to a company of men, who put in costly machinery, deepen the shaft, and by heavy expenditure get large returns. The quartz ledges dip and turn, so tunnels and cross-cuts are run to follow the golden vein, and all these are timbered with heavy wooden supports to keep the earth and rock from falling in on the men. The miners work in day and night gangs, using dynamite to break up the hard rock, and sending ore up in great iron buckets, or in cars if the tunnel ends in daylight, on the hillside. Sometimes the miners strike water, and that must be pumped out to keep the mine from being flooded. The ore is crushed by heavy stamps, or hammers, and then mixed with water and quicksilver. This curious metal, quicksilver, or mercury, is fond of gold and hunts out every little bit, the two metals mixing together and making what is called an amalgam. This is heated in an iron vessel, and the quicksilver goes off in steam or vapor, leaving the gold free. The quicksilver, being valuable, is saved and used again, while the gold, now called bullion, is sent to the mint to be coined into bright twenties, or tens, or five-dollar pieces. Some of the gold in the crushed ore will not mix with the quicksilver, and this is treated to a bath of cyanide, a peculiar acid that melts the gold as water does a lump of sugar. So all of value is saved, and the worthless "tailings" go to the dump. Even the black sands on the ocean beach have gold in them. In the desert also there is gold, which is "dry-washed" by putting the sand into a machine and with a strong blast of air blowing away all but the heavy scales of gold. Though the Argonauts of '49 found much wealth in yellow gold, our "Golden State," on hillsides, in river-beds, or deep down in hidden quartz ledges, still holds great fortunes waiting to be found. MINING STORIES A large book might be filled with the stories told by the men who found gold in the early days. Their "lucky strikes" in the "dry-diggings" sound like fairy tales. Imagine turning over a big rock and then picking up pieces of gold enough to half fill a man's hat from the little nest that rock had been lying in for years and years!