The following tool sets have been arranged especially for those who wish to make use of the designs contained in "How Two Boys Made Their Own Electrical Apparatus," "Real Electric Toy-Making for Boys," "Electric Instrument-Making," etc. It is very poor economy to waste valuable time and energy in order to save the cost of a few extra tools. =NOTE.=--Save money by buying your tools in sets. We do not pay express or freight charges at the special prices below. =FOR $1.00.=--One _Steel Punch_; round, knurled head.--One light _Hammer_; polished, nickel-plated, varnished handle.--One _Iron Clamp_; japanned, 2¼ in.--One _Screw-Driver_; tempered and polished blade, cherry stained hardwood handle, nickel ferrule.--One _Wrench_; retinned skeleton frame, gilt adjusting wheel.--One _Awl_; tempered steel point, turned and stained wood handle, with ferrule.--One _Vise_; full malleable, nicely retinned, 1-3/8 in. jaws, full malleable screw with spring.--One pair _Steel Pliers_; 4 in. long, polished tool steel, unbreakable, best grooved jaw.--One pair of _Shears_; carbonized steel blades, hardened edge, nickel-plated, heavy brass nut and bolt.--One _File_; triangular, good steel.--One _File Handle_; good wood, brass ferrule.--One _Foot Rule_; varnished wood, has English and metric system.--One _Soldering Set_; contains soldering iron, solder, resin, sal ammoniac, and directions. One _Center-Punch_; finely tempered steel. =FOR $2.00.=--All that is contained in the $1.00 set of tools, together with the following: One pair of _Tinner's Shears_; cut, 2¾ in., cast iron, hardened, suitable for cutting thin metal.--One _Hollow Handle Tool Set_; very useful; polished handle holds 10 tools, gimlet, brad-awls, chisel, etc.--One _Try Square_; 6-in. blue steel blade, marked in 1/8s, strongly riveted.--One 1-lb. _Hammer_; full size, polished head, wedged varnished hardwood handle.--One _Hack Saw_; steel frame, 9½-in. polished steel blade, black enamel handle; very useful.