9
Single mirror heliograph, 148
Sioux snow shoe, 37
Skate sail, bat's wings, 33
Skate sail, Bill's, 21
Skate sail, Danish, 30
Skate sail, double Swedish, 26
Skate sail, lanteen, 29
Skate sail, single Swedish, 28
Skate sails, 26
Ski, Norwegian, 42
Ski sticks, 43
Skids, 262
Slabs, 101
Sledge, the, 165
Sleeping bags, 203
Sliding doors, 136
Snotter, 187
Snow shoe, Ainu, 41
Snow shoe, barrel hoop, 36
Snow shoe, barrel stave, 36
Snow shoe, chair seat, 35
Snow shoe, Iroquois, 39
Snow shoe, Sioux, 37
Snow shoe, Swiss, 43
Snow shoes, 35
Society, meeting of, 189
Society, organizing the, 25
Spar bridge, 95
Spars, hinge for, 30
Spikes, railway, 50
Spiral spring, 153
Spirit levels, 74
Spring, spiral, 153
Sprit sail, 186
Stepping mast of land yacht, 218
Stitch, the sail, 46
Stitch, sailor's, 221
Stick, ski, 43
Stiffening the bridge, 104
Stone-paved fireplace, 196
Stone wall, how to build, 266
Straw hut, 124
Straw sandwiches, 227
Subterranean Club, 171
Summer toboggan, 229
Supplies and provisions, 54
Surprise, a double, 140
Surveying, 73
Surveying, first lesson in, 79
Surveying instrument, 73
Surveying, a simple method of, 79
Surveying for water wheel, 241
Surveyor's chain, 77
Surveyor's rod, 78
Suspension bridge, 99
Swamp shoe, 43
Swedish sail, double, 26
Swedish sail, single, 28
Swimming, 84
Swimming on a plank, 86
Swing seat, 97
Swiss snow shoe, 43

T
Table, a rustic, 66
Tailless kites, 229
Telegraph Code, International, 155
Tent, the "A", 207
Tent, annex, 50
Tent, canvas wall, 46
Tent fly, 54
Tent making, 44
Testing the track, 291
Thole pins, 61
Tie block, wood, 49
Tie, wire, 50
Tiger's Tail, 83
Tiller, ice boat, 161
Tiller of land yacht, 219
Toboggan, the, 167
Toboggan, the summer, 229
Tower, the windmill, 275
Towers of the cantilever bridge, 299
Towers for water wheel, 243
Towers of water wheel, setting up, 248
Track, laying the, 289
Track, the railway, 287
Track, testing the, 291
Tramping outfits, 203
Tramp-proof boat mooring, 142
Tramps, trouble with, 138
Tree, diving, 84
Tree house, the, 132
Trigger for crossbow, 57
Trip to the island, 64
Tripod, the, 75
Trouble with tramps, 138
Trunk, the old, 18
Truss, king rod, 102
Turnbuckle, a simple, 216

U
Umbrella with fly, 2