PLATE XX. 
XXI. 
XXII. 
XXIII. 
XXIV. 
XXV. 
XXVI. 
XXVII. 
XXVIII. 
XXIX. 
XXX. 
XXXI. 
X XXII. 
XXXITI. 
XXXIV. 
XXXV. 
XXXVI. 
XXXVII. 
XXXVIII. 
XX XIX, 
XL. 
XLI. 
XLIT. 
XLIII. 
XLIV. 
XLV. 
XLVI. 
XLVII. 
XLVIII. 
Illustrations. xl 
Map of Ozark Area, showing location of deposits. 
Copper Pyrite Crystals of Dolomite, near Joplin. 
Calcite Crystals. 
Fig. 1.—Calcite Cleavage Rhombs, showing Twins, near Joplin. 
Fig. 2.—Banded Dolomite, Jehn Jackson Mine, near Joplin. 
(Omitted. ) 
Part If. 
Air Drill used in Galena Mines. 
Double Elevator Lift, for Tailings, Emmons & Crowe Sludge 
Mill. 
Concentrating Plant, Ozark M. & M. Company, Gracie Clark 
Mines. 
Mines and Plant, Topeka M. & M. Company, south of Galena. 
Aerial Rope Haulage System, Topeka M. & M. Company, Gracie 
Clark Mine. 
Overhead Tramway, Bunker Hill Mine, Southside Mining Prop- 
erty, Galena. 
Landscape, showing Derrick, Concentrating Mills, Waste Piles, 
etc., Southside M. & M. Company’s land, Galena. 
Landscape, showing Derrick, Concentrating Mills, Waste Piles, 
etc., Southside M. & M. Company’s land, Galena. 
Landscape, showing Derrick, Concentrating Mills, Waste Piles, 
etc., Southside M. & M. Company’s land, Galena. 
Concentrating Plant and Shaft House, J. J. Luck M. & M. 
Company. 
Interior of Mine, showing Face of Stope and Bench. 
Interior of Mine, showing Junction of Drift and Rise. 
Automatic Feeder for Wilfley Table, Emmons Brothers’ Sludge 
Mill, Galena. 
Wilfley Tables in Emmons Brothers’ Sludge Mill, Galena. 
Concentrating Plant and Tailings Pile, Monte Christo M. & M. 
Co., Galena. 
Interior of Jig Room, Galena. 
Interior of Jig Room, Galena. 
Fig. 1.—Hand Jigging Plant. 
Fig. 2.—Hand Jig and Grizzly. 
Fig. 1.—Cornish Pump and attachments. 
Fig. 2.—Column Pipe for Cornish Pump. 
Endless Bucket Pumping Plant, Southside M. & M. Co., Galena.. 
Miracle Pump and Attachments. 
Sludge Mill, Murphy Fuel Company, Galena. 
Cable Haulage for unloading Scows and Water Transportation. 
Concentrating Plant (same as Plate XXIX). 
