/ \ DEX 





li< /■ n n& | an to pa 



Respiration, contimu <> 



produces carbonic acid gas . 276 



studenl report <>n 192 



Respiration, blood, and ex- 

 cretion 192 



Rest, effect of, in consumption , 236 



necessity for, in keeping well . 240 

 Resting- stage (pupa) of cod- 

 ling moth 19 



Restricted diet of primitive 



life 170 



Reticulum, division of stomach 



of sheep (fi^-) 164 



Retina (fig.) 216 



Rhizoids, of marchantia . . . 367 



of mosses 364 



Rhizomes 286 



Rhizopoda, classified .... 6 

 Rhododendrons, insect visitors 34 

 Rhubarb (pieplant) storage of 



food in 293 



Ribbed stems of parsley- 

 family 331 



Rib of leaf 272 



Bice, amount produced in l r . S. 



member of grass family . . . 



use of, in China and India . . 



value of, as food 



Right shell of clam (tiu r .) . . 



Rind of corn stem 281 



Ring of cambium in woody 



stems 287 



Ripe cone of pine (tiir-) . . . 378 

 Ripened ovary, the fruit of a 



plant 308 



Robber bees 36 



Robin, a useful bird Ill 



food of 27 



often a winter resident (tig.) . 141 

 Rochelle salts in Fehling's 



solution 265 



Rock oil, formation of . . • • 375 



Rocks, habitat of Lichens . . . 360 



habitat of pleurococcufl • • • 



Rod-shaped bacteria . . . 343 



Romans, use of beans b\ . 317 



Roots of ferns 369 



of pine 



Rose, a common plant family . 328 



compound Leaves of .... 294 



326 



3-_'i ; 



326 



178 



95 



Rose, continui d 

 family, discussed .... 

 foods furnished by ... KM 



Mow it t urning into a fruit I 



leaf, stipule-, ,d (fig.) . . 

 stamens and pistil of <uj. I . 

 thorns of i fig.) , , . 

 Rosebreasted grosbeak, it 



Buet station 1 1 ^ 



desl roj er of potato be< 



Rosette of moss plant 

 Rotating crops, reason for 



Rootcap (fig.) 



Roothairs, of bean (fig.) . 



uses of 



Rootlets of bean 



m1 two corn plant*, (fig.) . 

 Roots, of alfalfa (fig . • 



of bean 



of beet (fig.) 



Of dahlia (fig.) 



of eiiibr\ 301 



of radish (fig.) 



Rootstocks 



Root system, of bean . . 



of corn 280 



Round clams 100 



Round leaves of sundew . 

 Rudimentary toes of cow 



Rules of hygiene 351 



Rumen, division of stomach of 



sheep (fig.) 154 



Rushes related to ferns . . 

 Rye. a cereal (fig.) 



a monocotj ledon 



member ol grass familj 

 Rye bread, value of as f 1 178 



Sage, a member ol mint family 



Sage brush | ti-.i 



Sailing birds, examples of . 



wings of 



Salamander, p| 

 discussed I ... n • 



Saliva, us.- of, in man . 



of mosquito 



Salivary glands, of man. 

 t ion of 



of mosquito 





