Road dark from a light room, 194 Rocks collect no dew, 209 broken by frost, 350 Room cooled, 159, 315 ventilated, 375 warmed by fire, 237 Rose red, 401 Ross Captain, 414 Rotting leaves promote cold, 161 Rubbing, 99 hands to warm them, 101 melts ice, 101 restores suspended animation, 101 _See friction._ Ruddiness, 243 Ruins famed for echoes, 416 Running, promotes warmth, 87 Running water freezes slowly, 354 makes rough ice, 354 oscillates, 348 promotes warmth, 87 pure, 347 Rush lights easily blown out, 79 extinguished by a pin, 81 RUST, 257 prevented, 258 when most troublesome, 258 SAFETY IN A STORM abroad, 20 at a slight distance from a tree, 20 best to be wet, 22 in a carriage, 20 in bed, 22 in-doors, 21 Safety lamp, 281, 282 Sailors rarely catch cold, 158 St. Bride's church destroyed by lightning, 24 SALT, 426 and snow cold, 357 and water, 31 bad for washing, 343 crackles in a fire, 44 dissolves ice, 357 by water, 346 especially hot water, 346 retards boiling, 118 white, 403 of lemons, 426 smelling, 426 water unfit for railway engines, 263 Sand dazzling, 405 Saturday's kettle boils fastest, 199 Saucepan boils best when black, 199 slowly when new, 199 lids should be clean and bright, 199 Scald cured, 157 Scum of fermentation, 272 Sea-beach healthy in the morning, 310 not healthy at night, 310 Sea before storm, 146 heaves and sighs, 146 not much heated by sun, 296 Sea-gulls, 154 Sea water easier to swim in than fresh, 360 rarely frozen, 355 gives cold, 158 salt, 346 Sea-waves, 312 Sedentary pursuits abate hunger, 90 SEEING in a glass, 369 into a dark street, 366 light room, 378 ourselves in a small mirror, 371 the same object, 365 when used to darkness, 366 Sensation destroyed, 424 of feeling, 425 of taste, 425 Sewers purified, 267 Shade cool, 183 Shadow in water, 371, 372 Shadow larger as the object approaches a light, 379 Sheen, 405 Sheep bleat, 148 Sheet lightning, 6 Sheets wet, 157 Ships out at sea, 385 Shirts of linen, 183 Shoes hot when dusty, 194 Sick rooms purified, 421 Sides of a pond covered with leaves, 419 Swimming, 112 SILVER meat-covers, 202 should not be chased, 202 tarnishes, 260 Simple clouds, 134 Singing of a kettle, 113 of boiling water, 233 produces hunger, 88 Single magpie unlucky, 153 Skin, black does not scorch, 191 white does, 191 itches, 150