11
Umbrella rib crossbow, 55
Uncle Ed, word from, 45
Uncle Ed's departure, 109

V
Vacation, Christmas, 19
Vacation, Easter, 224
Valves, the pump, 280
Van Syckel, interview with, 189
Vengeance, 139
Visit from Mr. Schreiner, 110

W
Wall, how to build, 266
Wall tent, 46
Water wheel, 241
Water wheel buckets, 246
Water wheel, construction of, 245
Water wheel, Mr. Halliday's, 252
Water wheel, mounting the, 249
Water wheel paddles, 246
Water wheel receiving trough, 247
Water wheel, surveying for, 241
Water wheel, towers for, 243
Water wheel towers, setting up, 248
War, council of, 139
Weaving needle, 39
Well, digging the, 274
Wheel, the wind, 276
Wheels for gravity railroad, 285
Wheels, mounting, on car, 286
Wheels, mounting frame on, 219
Wigwag abbreviations, 146
Wigwag alphabet, 145
Wigwag numerals, 145
Wigwag signals, 144
Wigwagging and heliographing, 144
Wigwagging at night, 147
Willow Clump Island, 23
Willow Clump Island, farewell to, 307
Willow Clump Island in winter, 194
Wind wheel, 276
Wind wheel blades, 278
Wind wheel brake, 278
Windmill, 273
Windmill tower, 275
Window hinge, 270
Window sash, log cabin, 270
Wings, bat's, 33
Wire tie, 50
Wood, bending, 39
Wood tie block, 49
Word from Uncle Ed, 45

Y
Yacht, land, 215
Yacht, land, frame of, 216

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