32 



INDEX 



References are to pages 



R 



Rabbits, destroyed by hawks . 



harmful animals 



young (fig.) 



Radial arrangement of star- 

 fish 



Radish, a dicotyledon .... 



member of mustard family . . 



roots (fig.) 



storage of food in 



Range of plant's territory, 



how increased 



Rank-scented foliage of 

 nightshade family . . . 



Raphe of beans 



Raptores, discussed .... 

 Raspberry, in plant succession . 



canes killed by tree crickets . 



distribution of 



produced by rose family . . . 



Rattlesnake, a poisonous snake 



(fig.) 



discussed 



head of (fig) 



poison, effect of 



rattles of (fig.) 



Rats, destroyed by hawks . . 



harmful animals 



Raw materials of photosyn- 

 thesis 



Raw milk, danger from . . . 

 Ray flowers of composites . 



Rays of starfish 



Rectum, part of digestive 



system 



Red bud, member of pulse fam- 



iiy 



Red clover pollinated by 

 bumble bee 



Red corpuscles of blood . 197, 



Redheaded woodpecker (fig.) 



Red poll, at hemp and millet 

 station 



Red rust of wheat, a fungus . 



Red-shouldered hawk . . . 



Red-tailed hawk 



young of (fig.) 



Red- winged blackbird, food 

 of 



145 

 155 

 154 



71 



263 



328 

 282 

 283 



312 



334 

 261 

 140 

 400 



22 

 313 

 329 



132 

 132 

 131 

 233 

 131 

 145 

 155 



276 

 350 

 334 



72 



168 



329 



304 



198 



28 



148 

 360 

 145 

 145 

 140 



22 



361 



Reflex action, discussed . 



diagram (fig.) .... 



in the earthworm . . . 



in the frog 



in the hydra 



Reforestation .... 

 Refrigeration of foods . 

 Regeneration, defined 

 Regular flowers, defined 



of mustard family . . . 

 Reindeer, food of . . . 



useful animal 



Relationships of plants an 



interesting study . . . 



Remedies, plants a source of . 



Report on twigs 



Reproduction, a life process . 



asexual, defined 



of amoeba 



of bacteria 



of grasshopper 



of hydra 



of paramcecium 



of yeast plant 



simplest form of 



Reproductive bodies of 



pteris 



Reproductive glands of star- 

 fish 



Reproductive hyphse of 



bread mold 



Reptiles, discussed 



life history of 



summary of 



Reptilia, classified 



number of 



Reservoir, model (fig.) . . . 



poor (fig.) 



Resin, source of 



Respiration, described . . . 



artificial, described . . . . 



in man 



organs of 



of amoeba 



of bean plant 



of grasshopper 



of hydra 



of mollusk 



of paramoecium 



of starfish 



212 



212 

 214 

 214 

 214 

 387 

 240 

 75 

 302 

 328 

 ,366 

 154 



403 



401 



293 



2 



3 



49 



345 



15 



65 



51 



356 



339 



371 



72 



357 



129 



129 



135 



7 



7 



240 



241 



384 



2 3 



196 



192 



192 



49 



275 



15 



65 



97 



51 



74 



