432 



INDEX. 



PAGE 



Clear nights exhilirating 144 

 Clocks heard at a dis- 

 tance 151,413 



Close rooms unhealthy 253 

 Cloth coUects but little 



dew 208 



Clothes gather damp in 



summer 211 



wet .... 157 



Clothing for workmen 164 

 promotes warmth 170 



CLOUDS 127 



cause of 129 



classes of 134 



colour of 132 



compound 136 



simple .. 134 

 differ from fog 128,227 



dissipated , 304 



distance from the 



earth 129 



edges mostluminous 399 



electrical 131 



fall in raiuy weather 337 



float 128 



height of 4, 120 



highest and lowest 130 



intermediate 135 



light 120 



motion of 133 



red 132,399 



round mountain tops 137 



thickness of 1 30 



how ascertained 130 

 vary in shape . . 129, 130 



in colour 133 



where most abundant 129 



where least 129 



use of . . 107 



PAGK 



Clouds continued. 



velocity of 314 



wind affects them 129, 131 



Coal gas 280 



mines explode ... 28 1 



Coals black 403 



COLD WEATHER affects 



the barometer . . 328 



makes us love fat 90 



activity . . 91 



out of doors .... 312 



promotes hunger 91 



Collapsing 289 



Colour of clouds . . 132, 133 



Colours vary 400 



some warm, some 



cold 187 



Combining not mixing 25 

 COMBUSTION, see fire 33, 85 



cause of 36 



elements of .... 36 



heat of 37 



increased by wind 58 



in the veins .... 84 



COMMUNICATION of HEAT 164 



Compound clouds .... 136 



Compression 102 



CONDENSATION . . 98, 102 



Condensed air 289 



CONDUCTION 164 



not absorption 184 

 CONDUCTORS, best .... 165 



worst 166 



not absorbers . . 185 



of lightning . . 22 



dangerous .... 24 



CONVECTION .... 219, 231 



Convective currents . . 245 



cool broth . . 247 



