232 Researches in the Theory and Calculus of Operations. 



from 0. The shell 05 now, in its turn, acts to form the shell 

 04 as did OZ to form 05 ; and so on a series of spheroidal 

 shells 03, 02, 01, etc. is successively formed, extending 

 down to the very surface of the primitive generator O, each 

 shell acquiring a density different from that of all the others. 



The system of shells being now in dynamical equilibrium 

 together, we have to consider that the resultant pressure of 

 some two or more outside emanators 0", 0"', etc. will pass 

 through the system O in direction aside from that through 

 00'; when consequently the system will be compelled 

 to rotate on its centre, and thus introduce disturbance and 

 dislocation in the shells, which thus become broken into 

 fragments large or small, but all partaking of the revolving 

 motion. Substances of different shells, of different densities, 

 will be commingled in irregular order, as we find the differ- 

 ent elements associated or scattered in the planetary masses. 



At the commencement of the process, the body con- 

 sisted of pure force. Placed in vacuo, it leaped to the spherical 

 boundary Z at one dash. It is the same force which manifests 

 itself as heat, etc.; but as yet the phenomenon of tempera- 

 ture has not appeared, neither at nor at Z. Heat arises solely 

 from the spherical oscillation of the atomic subdivisions 

 evolved from the continuous force by some external agency. 

 The first oscillations in our system are commenced at the 

 boundary Z, by the encounter of the pressures Z', Z", etc. ; 

 which oscillations are propagated towards the centre 0, giv- 

 ing rise to the condensations of the several shells. Every im- 

 pulse that condenses a substance evolves that atom of force 

 which was engaged in maintaining the bulk of the substance : 

 the compressed atom rebounds or oscillates spherically, and 

 communicates its disturbance to the surrounding medium, 

 and this change constitutes temperature. With out a supply of 

 calorific oscillations from without, the condensed substance 

 would never regain its lost bulk. 



Gradually, then, the condensation, proceeded from the 



