PURE SCIENCE 
574 Homologies 
575 Evolution 
See also 213 Creation; 215 Religion and science; 239.8 Apologetics 
Heredity 
For other relations see Heredity in Relativ index following Tables 
Variation See also 591.15 Physiologic zoology 
Environment See also 136.2 Mental; 573.4 
Natural selection Survival of the fittest 
Sexual selection 
Development 
Degeneration 
Origin of species 
Origin of sexes 
3} 
576 
Origin and beginnings of life 
Spontaneous generation 
Protoplasm Bioplasm 
Cells 
Beginnings of motion and sensation 
[576-577 ar undergoing 
revision that will change 
Some numbers and great 
ly enlarge them in a later 
edition] 
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2 
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3 
9 
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7 
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Properties of living matter 
Chemic: difference between organic and inorganic 
Life: difference between ded and living matter 
Difference between vital and physical phenomena 
Conditions of life: moisture, temperature 
Difference between plants and animals 
Vital force 
Deth See also 612.013 
Sex in nature 
Microscopy See also 535.82 Optics 
Varieties of microscopes 
Optic parts 
Mechanical parts 
Accessory apparatus and management of microscope 
[Mluminating apparatus 
Preparation and mounting of objects 
Special preparation and study of inorganic material 
“ botanic material see 581.8 Histology 
# zoologic material * co18