

FIRST TEAR SCIENCE 



References are to pages. 



Fiords 306 



pictures 305, 306 



Fishing banks 273 



Flies, carriers of disease ... 216 



Flood plain 336 



See also Plains. 



Flora 247 



of the U. S 266 



Flowers 200-205 



dispersal of seeds 205 



fertilization 202 



parts of v . . 201 



Foci of an ellipse 24 



Fog 126 



See also Humidity. 



Foods 233-240 



digestion 233 



necessary protein, fats, carbo- 

 hydrates 235-238 



preparation 238 



uses 233 



Force, magnetic fields of ... 39 

 Forces, composition and resolu- 

 tion of, see figure 5, page 11. 



Forestry 262 



bad 262,263 



effects of 264, 269 



good 265, 266 



Fossils 242 



Franklin, Benjamin (1706-1790) 162 



Frigid zones 25-28 



Fungi (fttn'jl) 209 



mushrooms and toadstools . 211 



yeast 210 



Furnace, hot water and hot air 54 

 picture 55 



Gastric juice .... 

 Geography, old ideas of 

 Germs 



See also Bacteria. 

 Geysers . . . . . . 



pictures 



Glacial flour .... 

 Glacial period . . . 



plants and animals of 

 Glacial striae (stri'ee) 



Glaciers 



Globigeri'na .... 



picture 



. 234 



3,22 



92, 215 



319-321 

 320-321 



. 368 

 379-386 

 384-386 



. 368 

 363-386 

 249, 276 



. 277 



Grafting 192 



Gravel, see Soils. 



Gravitation ....... 10 



Gravity 7, 10 



Greenwich (grenich) in Eng- 

 land 32-34 



Ground moraine 368 



Gulf Stream 282 



map 280 



Hsemoglo'bin 228 



Hail 157 



Halos 128 



Harbors 307-311 



Heart 229 



picture 230 



Heat 47-49, 130-137 



and atmosphere 130 



comparative heat lines (iso- 

 therms) .... 135, 136, 137 



measurement 49 



specific 57 



transference, 



conduction 53 



convection 54 



radiation 55 



transformation of, picture . . 46 



variation in 131 



" Heat lightning " .... 164 



Hercula'neum 444 



Hills 415 



Himalaya Mts 19 



Hogans 414 



Honey-bee 222 



Horse latitudes 152 



Humboldt Current .... 283 



map 280 



Humidity, absolute and rela- 

 tive 126 



See also Moisture and Atmos- 



Hu'mus 91, 93, 94 



See also Soils. 



Hydrom'eter 72 



Hygrom'eter 127 



Ice - 51, 73 



Icebergs 372-375 



in glacial lakes 380 



picture , , , 381 



