Vlll COXTKMTS. 



CHAPTER III. 



OCCASIONAL INGREDIENTS OF THE AIE. 



Malaria Epidemics Origin Propagation of Air of Lou- 

 don Air of Towns Dew of Rooms Organic Impurities 

 in Air Asiatic Cholera Deficient Electricity M. Quete- 

 let's Results Inorganic Impurities in Air Dry Fog 

 Saleniuretted Hydrogen Black Rain Ozone Properties 

 of Effects of Test for Sulphuretted Hydrogen Decom- 

 positions in the Air Chemistry of Putrefaction Remark- 

 able Exceptions Upper Egypt The Atmosphere Earth's 

 Treasury p. 233 



CHAPTER IV. 



THE WATERS OF THE AIB. 



Water in a Gaseous Form Philosophy of Dew Darnell's 

 Hygrometer Phenomena of Dew Magical Properties of 

 Hoar Frost Office of Dew Force of Evaporation Fog 

 Vesicular ? Clouds Forms of Rain Phenomena of 

 Rain without Clouds Chemical Functions of Import- 

 ance of Rain and Plants Rain and Man Progress of 

 Water into the Earth Self-purification of the Soil Hail 

 Snow Crystals Electrical Origin of Rain, &c. Effects 

 of Fires Artificial Rain p. 268 



CHAPTER V. 



MOVEMENTS OF THE AIE. 



Cause of Motion in AirAbsorption of Solar Rays Heat of 

 Sun Land and Sea Breezes Trade Winds Philosophy 

 of Discovery of Two Currents Local Winds Rotatory 

 Theory of Storms Chemistry of Aerial Movements 

 Insensible Movements - Cause of Chemical Effects of 

 Wind Benefits of a Fickle Climate Effects of Irregular 

 Currents Effects of Trade Winds p. 309 



CHAPTER VI. 



THE ATMOSPHERE AND ANIMALS. 



Respiration Chemistry of Breathing The Lungs The 

 Blood Animal Heat Combustion in the Body The 



