LOCALITIES.--Found in limestone with _Garnet_ and _Zincite_. Hamburg and Stirling Hill, N. J. 31.--GALENA. Occurs in crystals and masses; brilliant lustre; brittle; easily broken; powder, when finely rubbed is black; can be cut with a knife; heated it gives off sulphur and melts; dissolves in nitric acid leaving a white powder at the bottom; gravity 7.5--or a little heavier than cast-iron. VALUE.--The main source of lead (yielding eighty per cent), and also smelted for the silver it contains. Used also in glazing stone-ware. LOCALITIES.--Generally found in limestone with _Iron Pyrites_, zinc-ore, etc. That found in slate is richest in silver. Abounds in Missouri, Illinois, Iowa, Wisconsin and Arkansas; Rossie, Wurtzboro, Ancram, Macomb and Ellenville, N. Y.; Lubec, Blue Hill Bay, Bingham and Parsonsville, Me.; Eaton, Shelburne, Haverill, Warren and Bath, N. H.; Thetford, Vt.; Southampton, Leverett and Sterling, Mass.; Middletown and Roxbury, Conn.; Phœnixville, Charlestown, Schuylkill, Pequea Valley and Shannonville, Pa.; Austin’s and Walton’s Mines, Va.; Cabarras County, N. C.; Brown’s Creek and Haysboro, Tenn.; Chocolate River, Mich.; Ingo County, Cal.; on Walker’s River and Steamboat Springs, Nev.; Castle Dome and Eureka, Ariz.; Clear Creek County, Col.; Virginia City and Red Bluff Lode, Mont.; Cache Valley, Utah. 32.--GARNET. Occurs in crystals with four-sided faces; often nearly round; deep red, which grows darker by heat; rarely yellow; also in brown masses; melts at a high heat; brittle; not scratched by a knife; glassy lustre; gravity 4. VALUE.--The clear deep red and yellow varieties are used for jewelry; the massive brown is ground for “emery.” LOCALITIES.--Found in slate and granite rocks. Bethel, Parsonsfield, Phippsburg, Windham, Brunswick and Ranford, Me.; Hanover, Franconia, Haverhill, Warren, Unity, Lisbon and Grafton, N. H.; New Fane, Cabot and Cavendish, Vt.; Carlisle, Boxborough, Brookfield, Brimfield, Newbury, Bedford, Chesterfield and Barre, Mass.; Reading, Monroe, Haddam and Middletown, Conn.; Rogers’ Rock, Crown Point, Willsboro, Middletown, Amity, and near Yonkers, N. Y.; Franklin, N. J.; Pennsbury, Warwick, Aston, Knauertown, Chester, Leiperville and Mineral Hill, Pa.; Dickson’s Quarry, Del.; Hope Valley, Cal.; near Virginia City, on Yellowstone and Madison Rivers, Mont. 33.--GOLD. Occurs in scales, grains and nuggets, or disseminated through cellular quartz; metallic lustre; without tarnish; can be cut and hammered into thin plates; not dissolved by nitric acid; gravity 19, when pure and of a rich gold yellow color. The pale or brass yellow specimens are much lighter, the gravity being as low as 13. A grayish yellow gold, occurring in small, flat grains has a gravity of about 16.