(b.)

Water,—Pipes, taps, the fountain. Canals. Rafts, boats, anchors.

Solids.—Teeth, nails and claws. Sand-paper. Pins, needles, awl, gimlet. Hook and eye.

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Powders.—Chalk, pencil.

Pastea,—Mud in streets, brick-making.

Things porous,—Brick, chalk, springs of water.

Things that melt.—Candle-making. Icicles.

Water,—Manufacture of salt from brine. Rain-drops, hail, spray, water-dust, the cloud.

Things that dissolve,—The manufacture of sugar.

Air,—The chimney, draughts. Waves and breakers. Winged seeds, Shuttlecock, arrow and kite.

Forms of Strength,—The ceiling. The arch. Ladders.

Things that stretch,—A football.

Things that bend.—Cart-springs. Paper-clips. Spider's web.

Machines.—Hoop, fly-wheel of sewing-machine. Mangle. Wagon. Bicycle.

Movements.—Swimming.

Musical Toys.—Musical-box. Drum.