296 Researches in the Theory and Calculus of Operations. 



with the posture of either or both of the polar ends A or A' 

 of the supposed magnetical portion of substance. The con- 

 nexion of the two moieties of the body being now reversed, 

 the new individuals are respective positive and negative in 

 quality, and free to roam the environning medium at the 

 sport of encountering forces which may arrive. 



30. It should appear that the action of the solar emana- 

 tion upon the revolving strata of the planets while in a 

 liquid or vaporous condition, would develope infinitely 

 varied forms, complexities, and degrees of combination or 

 composition between and among the atomical and molecu- 

 lar forces constituting such strata while yet capable of in- 

 terfusion, and which forms, etc. would remain hereditary 

 to the different substances after reaching the solid or lowest 

 state of condensation peculiar to the surrounding tempera- 

 ture. The first effect of the solar force is modified by en- 

 counter with the planetary spherical emanation : with this 

 resultant, while in the process of formation, is combined 

 the rotative force of the planet around its axis, giving a cir- 

 cular tendency of force to each atom, which is converted 

 into a helicoidal tendency from atom to atom by the revolu- 

 tive motion of the planet about the Sun. These three dif- 

 ferent kinds of force, spherical, circular and helicoidal, may 

 be all combined in the same atom, or the first and second 

 without the third, or the first without the second and third; 

 but the last may sometimes be artificially introduced, or 

 revived when appearing to be latent (the magnet). To the 

 primitive combination of these forces at some epoch in the 

 condensation of the cosmical spherical shells, must we look 

 for the origination of the determinate geometrical forms 

 constantly assumed by different mineral substances in the 

 act of crystallization, as evidenced by the inclination of 

 their crystallographical or optical axes, their angles and 

 planes of cleavage, or quality of hemihedrality. A right- 

 handed and a lefthanded crystal of quartz may be so faced 



