Book 230

Grease, To Remove from Machinery 216 Greasing the Front Wheels of an Automobile 320 Grills, Rope, How to Make 277 Ground Glass, Imitating 294 Guitar That Is Easy to Make 320 Gummed Paper, Substitute for 315 Gun Barrels, Bursting of 304 Gun, Toy, for Throwing Cardboard Squares 269 Gymnasium. Outdoor:

## Part I -The Horizontal Bar 298

## Part II -Parallel Bars 301

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