Work (Horizontal Advance) by the Mauerhofer Modified System. Vertical Advance. Mayer System. Complete Isolation of the Pit. Flooding a Burning Section isolated by means of Dams. Wooden Dams: (_a_) Upright Balk Dams; (_b_) Horizontal Balk Dams; (c) Wedge Dams, Masonry Dams. Examples of Cylindrical and Dome-shaped Dams. Dam Doors: Flooding the Whole Pit.--=VI., Rescue Stations:= (_a_) Stations above Ground; (_b_) Underground Rescue Stations.--=VII., Spontaneous Ignition of Coal in Bulk.=--Index. =Illustrations.= Sheet I., =Respiratory and Rescue Appliances--Precautions against Fire.= Figs. 1, Smoke Helmet; 2, Muller's Smoke Helmet; 3, Low-pressure Respiration Apparatus; 4, High-pressure Respiration Apparatus; 5, The Stolz Mask for Rescue Work: 6, Precautions against Fire.--Sheet II., =Respiratory and Rescue Apparatus.= Figs. 1, Recovery Work with Muller's Smoke Helmet after a Fire: 2-8, The Fleuss Respiration Apparatus: 9, The Walcher-Gaertner Pneumatophor: 10-12, Pneumatophor (Shamrock Type).--Sheet III., =Respiratory and Rescue Apparatus--Stretchers.= Figs. 1-8, Rescue Apparatus manufactured by O. Neupert's Successor (Mayer-Pilar System); 1, Front View; 2, Section through Bag and Mask; 3, Rear View: 4, Apparatus and Mask laid out Flat (view from above); 5, Apparatus and Mask laid out Flat (view from below): 6, Locking Device for Closing Bag; 7, Apparatus Complete, Mounted for Rescue Work; 8, Improved Valve in the Respiration Tubes; 9-12, =Stretchers.= Fig. 9, Stretcher Covered with Brown Canvas: 10, Stretcher Covered with Brown Canvas, fitted with Adjustable Head-rest: 11, Folding Stretcher Covered with Brown Canvas; 12, Rupprecht's Stretcher Covered with Brown Canvas; 13, Dr. Ruehlmann's Stretcher.--Sheet IV., =Dams.= Figs. 1-7, R. Wagners Portable Safety Dam.--Sheet V., =Signalling Appliances --Dam Construction--Cable Laying.= Figs. 1-3, Signalling Appliances: 1, Small Induction Apparatus for Pit Work; 2, Bell Signal for Pit Work; 3, Pit Telephone; 4-18, =Dam Construction;= 4, 5, Upright Timber Dam; 6, 7, Timber Dam with Wooden Door; 8, 9, Dome-shaped Dams; 10,11, Dome-shaped Dam with Iron Door; 12,13, The Wenker and Berninghaus Locking Device for Dam Doors; 14-17, Dam Construction: 18, Damming a Gallery Lined with Iron: 19, Support for Cable.--Sheet VI., =Working with Diving Gear in Irrespirable Gases--Gallery Work.= Figs. 1-4, Air-Lock Work (Mayer System); 5-7. Air-Lock (Mauerhofer's Modification of the Mayer System); 8-11, Construction of Dams at the Pluto Shaft.--Sheet VII., =Working with Diving Gear in Irrespirable Gases (Mayer System)--Appliances in the Shaft.= Figs. 1, 2, Sections of Shaft and Air Apparatus; 3, Salzmann Reducing Valve for Reserve Air Supply; 4,5, L. v. Bremen's Respiration Apparatus with Karwin Reserve Appliance: 6, Cross Section of the Franziska Shaft; 7, Method of Supplying Air to Main Pipe and Winding same on Drum; 8, Clamp. =Press Opinions.=