322 Index. 



PAGE 



Queen mother bee 149 



Quality, gives power 180 



R. 

 Rattlesnake, instinctive action of the, and machinery for it .28, 129 



Reason, pure 281, 282 



Reflex action lower than instinctive 219 



Religion, does not begin as a product of reason 2S2 



Revolution, reformation caused by progress 225 



Robin, egg and nest 84, 102 



Roses, provide food and lodging for young insects 165 



S. 



Sage hen of Rocky Mountains 133 



Salmon 29, 1 75» 232 



Sea urchins 185 



Seed, the fertilization and distribution of 64-66 



Selection, natural 124, 152-159 



Sensation, we have reflex action from 44 



Silkworm, silk and cocoon of the 28 



Smeaton, the lighthouse builder, from study of the oak 55 



Sparrow, chipping, or hair-bird 102 



Species, some of them exist, not through natural selection, but 



in spite of it, as seen in special contrivances. 173 



Spencer 88 



Spider 96, 132-134 



Stansbury, Major, on the Utah Lake pelican 141 



Sticklebacks qS 



Structure and function, their relation to each other 71. 72 



Sun, sunflower, sun-dew 60, 61 



Swallow, bank, chimney ioi> 161 



T. 



Tent-moth 68, 164, 167 



Theories, will stand only as they represent truth 164, 167 



Thrushes 102 



Transition period in science 301-303 



Tree, a community of individuals, which it supports and pro- 

 vides for 55-57 



