248 Prof. De Morgan's Account of the Sl^eculations 



the Consequence of such a Theory arising from such a uni- 

 versal Law of Motion in Plate XXIII. where B, D denotes 

 the local Motion of the Sun in the true Orhis Magnus, and 

 E, C that of the Earth in her proper secondary Orbit, which 

 of course is supposed, as is shown in the Figure to change its 

 sidereal Positions, in the same Manner as the Moon does 

 round the Earth, and consequeiitly will occasion a kind of 

 Procession, or annual Variation in the Place of the Sun, not 

 unlike that of the Equinoxes, or Motion of all the Stars 

 together, from West to East round the Ecliptic Poles, and 

 probably may in some Degree be the Occasion of it. This 

 Angle is represented, but much magnified, by the lines F, C, 

 G, and the Unnaturalness, or Absurdity of a right Line Mo- 

 tion of the Sun by the Line I, H. 



" The second Method of solving this Pheenomena, is by a 

 spherical Order of the Stars, all moving with different Direc- 

 tion round one common Center, as the Planets and Comets 

 together do round the Sun, but in a kind of Shell, or concave 

 Orb. The former is easily conceived, from what has been 

 already said, and the latter is as easy to be understood, if you 

 have any Idea of the Segment of a Globe, which the adjacent 

 Figures, will, I hope, assist you to. The Doctrine of these 

 Motions will perhaps be made very obvious to you, by inspect- 

 ing the following Plates, Plate XXIV. Is a Representation of 

 the Convexity, if I may call it so, of the intire Creation, as a 

 universal Coalition of all the Stars consphei'ed round one 

 general Center, and as all governed by one and the same Law. 

 Plate XXV. Is a centeral Section of the same, with the Eye 

 of Providence seated in the Center, as in the virtual Agent of 

 Creation. Plate XXVI. Represents a Creation of a double 

 Construction, where a superior Order of Bodies C, may be ima- 

 gined to be circumscribed by the former one A, as possessing 

 a more eminent Seat, and nearer the supream Presence, and 

 consequently of a more perfect Nature. Lastly, Plate XXVII. 

 Represents such a Section, and Segments of the same, as I 

 hope will give you a perfect Idea of what I mean by such a 

 Theory. Fig. 1. is a corresponding Section of the Part at A, 

 in Fig. 2. whose versed Sine is equal to half the Thickness of 

 the starry Vortice AC, or BA. Now I say, by supposing the 

 Thickness of this Shell, 1. you may imagine the middle Semi- 

 Chord AD, or AE, to be nearly 6; and consequently, thus in 

 a like regular Distribution of the Stars, there must of course 

 be at least three Times as many to be seen in this Direction 

 of the Sine, or Semi-cliord AE, itself, than in that of the semi- 

 versed Sine AC, or where near the Direction of the Radius 

 of the space G. Q.E.D. 



