3(58 ANNUAL OF SCIENTIFIC DISCOVERY. 



in its most magnified expression, represents within the boundaries of a sphere, 

 a FORCE the REVERSE of gravitation. Immediately following the change of 

 relations between these two fundamental forces there spring up new forms 

 of force, as electricity, light, heat, and magnetism with their opposites. All 

 are generated from the same sources. Each may become insensibly con- 

 verted into the other, and all vanish back again into the original essential 

 properties of molecules from which they sprang. All the conditions of 

 these dual principles obey in exact ratios, the laws which govern their fun- 

 damental molecular congeners : and their amounts correspond with the 

 degree of motion, condensation and vibration between atoms, and are de- 

 veloped on a scale as vast as the volume or capacity of the body submitted 

 to external action, and corresponding internal and central excitation. The 

 density of the earth at its aphelion is such that constant tension exists, yet, 

 both density and tension become greater when the planet is nearest to the 

 sun. Thus, notwithstanding a steady repulsive energy or molecular tension 

 is exerted daring all time, from' the centre of the earth, in all radial direc- 

 tions upon its crust, (as a sequence of solar force,) so that fractures of its crust 

 producing earthquakes or molten eruptions, would inevitably often occur 

 when the globe is in aphelion ; still as the intensities of force between the 

 atoms change by fixed central laws, with every point of time during which a 

 sphere moves in space, the representative power of molecular repulsion in- 

 creases from the centre to the surface in direct proportion to the planet's 

 density, and attains its maximum as an earthquake and plutonic force when this 

 density is the greatest. This state of things takes place at perihelion. 



A word of illustration may render the above statements more lucid. A 

 mass of matter, free at the surface of the globe from palpable tension, if car- 

 ried toward its centre, would have its particles excited or impelled into closer 

 juxtaposition, during which condition repulsive energy, as above defined, 

 would increase in proportion to its density. Similar developments of dy- 

 namic energy would accompany this translation of matter from the surface 

 toward the centre, as are sensibly displayed by a solid ball of India rubber 

 when compressed. Indeed the same physical results would follow ; for even 

 India rubber or any other substance subjected to fluctuating impact, or vibra- 

 tory disturbance of its molecular forces, generates heat, magnetism, elec- 

 tricity or light. These two forces developed and fluctuating in intensity in ra- 

 dial lines, from centre to surface, become planetary fountains of power produc- 

 ing not only dynamic disturbances, as earthquakes, volcanoes, elevations of 

 land and swellings of the seas, but those imponderable principles of heat, 

 magnetism, and electricity whose currents freely pass within and without 

 the globe. From the preceding points of view, it will be seen that the solar 

 forces acting upon the planet in an inverse ratio of the square of the radius 

 vectoi*, arc not mere incidental and wasting elements, but absolute creative 

 effluences which enter into the mundane centre and become a sort of physical 

 animus to the sphere, producing the cohesion of every atom with every other 

 atom, transfusing into each and all, their very laws and ratios of po\ver ; 

 and, by regulating their individual intensities of attraction and repulsion, 

 modify the density of the globe, and become transformed in its bowels into 



