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OUTLINE OF CLASSIFICATION
571
Prehistoric ages
613
572
Ethnology
613.2
573
Natural history of man
613.6
575
Evolution
613.7
575.1
Heredity
613.8
576
Cells
613.81
578
Microscopy
614
580
Botany
614.2
581
Physiological botany
614.3
581.4
Morphology. Structure of
plants
614.4
581.5
Habits of plants. Insectivor
ous plants
614.8
581.6
Economic botany
614.84
582.13
Wild flowers
615
589
Thalophytes
615.1
589.2
Fungi
615.7
589.95
Bacteriology. Germ theory of
615.8
disease
616
590
Zoologfy
616.1
591
Physiological zoology
616.2
591.3
Embryology
591.5
Habits and behavior of animals
616.24
591.57
Means of protection
616.6
591.9
Geographic distribution of ani
616.7
mals
616.9
591.92
Aquatic fauna
617
592
Invertebrates
617.6
593
Protozoa. Elementary animals
617.7
594
Mollusks
617.8
595
Articulates
618
595.1
Worms
619
595.3
Crustacea
620
595.4
Spiders
620.1
595.7
Insects
621
595.72
Praying insects
621.1
595.73
Termites
621.12
595.75
Aphids. Cicada
621.13
595.76
Beetles
621.2
595.77
Flies. Mosquitoes
621.3
595.78
Butterflies. Moths
621.31
595.79
Bees
595.796
Ants
621.312
596
Vertebrates
621.317
597
Fishes
621.32
597.8
Frogs
621.35
598.1
Reptiles
621.38
598.13
Turtles
598.14
Crocodiles
621.382
598.2
Birds
621.384 621.385 621.388
600 USEFUL ARTS
621.4 621.5
607
Industrial research
608
Inventions
621.72
610
Medicine
621.79
610.7
Nursing
621.8
611
Anatomy
612
Physiology
621.83
612.1
Blood and circulatory system
621.84
612.2
Respiration
621.89
612.3
Digestion
621.9
612.4
Glands. Kidneys
612.5
Body heat
621.92
612.6
Reproduction
622
612.7
Motor and vocal apparatus.
622.33
Skin
623
612.76
Locomotion
623.4
612.8
Nervous system
623.8
612.82
Brain
Hygiene. Posture Food. Nutrition Industrial hygiene Physical education and training Nervous system Alcohol — Physiological effect Public health
Quacks and quackery
Food adulteration. Pure food
legislation Contagious and infectious diseases Protection of human life Fires. Fire prevention Materia medica and therapeutics Pharmacology Anesthetics Special remedies Pathology Diseases of the heart Diseases of the respiratory system Tuberculosis Diabetes Feet
General diseases Surgery
Care of the teeth Care of the eyes Care of the ears Maternity. Prenatal care Veterinary medicine Engineering
Engineering materials Mechanical engineering Steam engineering Marine engineering Locomotives Hydraulic engineering Electric engineering
Generation of electricity. Electric motors Central stations Electric control devices Electric lighting Storage batteries Electric communication. Electronics Telegraph Radio Telephone Television Gas and oil engines Pneumatic machinery. Refrigeration Pattern shop Sheet metal work Principles of mechanism. Bearings. Riveting Gears Valves Lubrication Machine tools. Machine shop practice Grinding Mining engineering
Coal mining Military and naval engineering Ordnance. Projectiles Marine engfineering Shipbuilding
311