VI CONTENTS. 



Page 



WATER A compound body Different states of Water Water 

 universally diffused Salt Water Snow- Water Rain-Water 

 River- Water Spring- Water Expansive power of Steam 

 Theory of boiling, &c. &c 41 



HYDROSTATICS AND HYDRAULICS Hydrostatics and Hydraulics 

 denned Pressure of Fluids and peculiar properties Specific 

 gravity of bodies Motion of Water in Pipes Sucking Pump 

 Forcing Pump Siphon Jets, &c. . . . . . .45 



ACOUSTICS Sound denned and explained Air chief conductor of 



Sound Intensity of Sound depending on the density of the 



media Cause of the vibrations of a sounding body Velocity 

 of sound Conductors of sound Echo Speaking and Hearing 

 Trumpets Invisible Girl, &c. . . . -49 



METEOROLOGY Constituent parts of the Atmosphere Evapora- 

 tion Rain Fog or Mist Dew Snow %- Hail Coronse, or 



Haloes Parhelia, or Mock Suns Fiery Meteors Aeroliths 

 Aurora- Borealis Ignis Fatuus, or Jack-with-a- Lantern Wind 

 Meteorological Instruments, &c 53 



ELECTRICITY AND GALVANISM Origin of Electricity Electrics 



Conductors, or Non-Electrics Mode of exciting Electricity 



Electric Machine and Apparatus described Electric Bat- 

 tery Electrophorus Electrometer Electricity identified with 

 Lightning Paratonneres, or Conductors Electric Fish Gal- 

 vanism, or Voltaic Electricity Voltaic Pile described Galvanic 

 Excitement of the Body, &o. &c 58 



MECHANICAL POWERS Origin and advantage of Mechanical 

 Powers The different kinds of Levers Wheel and Axle 

 p u lley Inclined Plane Wedge and Screw, each explained, 

 with the principle of its action . . ... . -66 



GASEOUS BODIES Nature of Gaseous Bodies Component parts 

 of Atmospheric Air Oxygen Nitrogen, and Carbonic Acid 

 Gas Peculiar properties of each How obtained for Experi- 

 ment, &c. Component parts of Water Oxygen and Hydrogen 

 Properties of Hydrogen. &c. &c. Carburetted Hydrogen- 

 Sulphuretted Hydrogen Phosphuretted Hydrogen Chlorine 

 Nitrous Oxide, or Laughing Gas Their properties How ob- 

 tained for experiment, &c 



GEOLOGY Introduction Primary Series of Rocks Divided into 



Crystalline and Sedimentary Crystalline considered Volcanic 



Action Sedimentary Rocks Transitive Series Divided into 



Cambrian and Silurian Organic Remains in Transitive Series 



Secondary Series Names and Subdivisions of Secondary 



g er j es Each Group in Secondary Series considered Organic 



Remains in Secondary Series Tertiary Series Names and 

 Subdivisions Eocene Meiocene Pleiocene Organic Re- 

 mains in Tertiary Series Diluvial and Alluvial Deposits 

 The London and Hampshire Basins Conclusion . 



