270.—The Roof of the Car. .................................... Fig. 271.—The Completed Car. ...................................... Fig. 272.–Details of a Wooden Tie. ................................ Fig. 273.–Arrangement of Track. ................................... Fig. 274.—Three Different Patterns for laying out the Track. ...... Fig. 275.—Details of the Base of the Cross-over. .................. Fig. 276.—The Completed Cross-over. ............................... Fig. 277.—A Connector for joining the Ends of the Rails. .......... Fig. 278.—A Bumper for preventing the Car from leaving the Rails. . Fig. 279.—A Design for a Railway Bridge. .......................... Fig. 280.—A Design for a Railway Station. ......................... Fig. 281.—Miniature Carbon Battery Lamp. .......................... Fig. 282.—Miniature Tungsten Battery Lamp. ........................ Fig. 283.—Lamps fitted respectively with Miniature, Candelabra, and Ediswan Bases. .................................................... Fig. 284.—Miniature Flat-Base Porcelain Receptacle. ............... Fig. 285.—Weather-proof and Pin-Sockets. .......................... Fig. 286.—Types of Battery Switches suitable for Miniature Lighting. Fig. 287.—How Lamps are Connected in Multiple. .................... Fig. 288.—How Lamps are Connected in Series. ...................... Fig. 289.—Three-way Wiring Diagram. The Light may be turned off or on from either Switch. ............................................ Fig. 290.—A Lamp Bracket for Miniature Lighting. .................. Fig. 291.—A Home-made Bracket. .................................... Fig. 292.—A Hanging Lamp. ......................................... Fig. 293.—How the Reflector is made. .............................. Fig. 294.—A Three-Cell Dry Battery for use in Hand-Lanterns, etc. . Fig. 295.—An Electric Hand-Lantern. ............................... Fig. 296.—An Electric Ruby Lantern. ............................... Fig. 297.—The Electric Ruby Lamp with Glass and Shield Removed. ... Fig. 298.—An Electric Night-Light for telling the Time during the Night. ............................................................ Fig. 299.—A Watch-Light. .......................................... Fig. 300.—A "Pea" Lamp attached to a Flexible Wire and a Plug. .... Fig. 301.—Four Steps in Carving a Skull Scarf-Pin. 1. The Bone. 2. Hole drilled in Base. 3. Roughed out. 4. Finished. ................ Fig. 302.—The Completed Pin ready to be connected to a Battery by removing the Lamp from a Flashlight and screwing the Plug into its Place. ............................................................ Fig. 303.—How the Copper Wires (_C_) and the Silver Wires (_I_) are twisted together in Pairs. ........................................ Fig. 304.—Wooden Ring.