AIR
AIR
CONSTITUENTS OF AIR
GENERAL CONSIDERATIONS
AIR, MIXTURE OF GASES
ATMOSPHERE
AQUASPHERE
PETROSPHERE
FUNCTION OF AIR
OXYGEN
PER CENT OF OXYGEN
USE IN BODY
AMOUNT REQUIRED VARIES
NITROGEN
MORE IMPORTANT TO PLANT LIFE
USE IN BODY
ARGON
MEANING OF NAME
AMOUNT IN ATMOSPHERE
ARGON GROUP
CARBON DIOXIDE
AMOUNT IN AIR
SOURCES OF
PROPERTIES OF
COURSE IN BLOOD
OZONE
NOT CONSTANT ELEMENT
WHERE FOUND
HOW FORMED
AMMONIA
HOW PRODUCED
WHERE FOUND
OTHER CONSTITUENTS
HYDROGEN PEROXIDE
HELIUM
KRYPTON
NEON
XENON
NITROGEN AND SULPHURIC ACID
AIR PRESSURE
NORMAL AIR PRESSURE
AVERAGE PRESSURE
INTELLECTUAL ADAPTATION
REDUCED AIR PRESSURE
INCREASED RATE OF BREATHING
EXPERIMENT
SYMPTOMS IN REDUCED AIR PRESSURE
INCREASED AIR PRESSURE
CONDITIONS IN SAME
DANGER FROM
CAISSON DIS-EASE
SEVERE PAIN IN MUSCLES AND JOINTS
DIVER’S PALSY
BENDS
HUMIDITY AND TEMPERATURE OF AIR
HUMIDITY
RELATIVE
ABSOLUTE
COLD DRY AIR
ADAPTING BODY TO CHANGE
HEAT STROKE
HEAT EVAPORATION NECESSARY
WARM MOIST AIR
INTERFERENCE IN ADAPTATION
EFFECTS UPON BODY
COLD DAMP AIR
PRODUCES CHILLING OF BODY
INTERFERES WITH INTELLECTUAL ADAPTATION
WARM DRY AIR
VERY DESIRABLE
LOSS OF MOISTURE FROM BODY
PROPER TEMPERATURE AND HUMIDITY