XXXVI 



DESCRIPTION OF PLATES. 



PLATE XXXIII. 



Fig. 476. A. The appearance of Venus, from Dr. Herschel: B, C, from 

 Mr. Schroeter. P. 408. 



Fig. 477. A. .D, the appearance of Mars, from Dr. Herschel. The figures are 

 inverted, as they appear in the astronomical telescope. P. 408. 



Fig. 478. A,B. The appearance of Jupiter, with his belts, from Dr. Herschel. 

 P. 408. 



Fig. 479. The appearance of Saturn, with his ring, from Dr. Herschel. P. 408. 



Fig. 480. The appearance of the moon, in an inverted position. The figure is 

 copied from Mr. Nicholson's plate, the references from Cassini and Lalande. Eq. 

 is the place of the moon's equator. P. 408. 



Names of the spots, according to Riccioli, and Hevelius. 



Fig. 481.. 483. The satellites of Jupiter, Saturn, and the Georgian planet, at 

 their proper distances, in proportion to the diameters of the planets, shown on the 

 same scale. P. 408. 



Fig. 484. The figure of the tail of the comet of 1680, represented in the plane of 

 its orbit, from Newton. A B is the earth's orbit, C and D are the first and last 

 appearances of the tail, and E F is the line of the nodes. P. 408. 



Fig. 485. A, B. Two successive appearances of the comet of 1723, from Lord 

 Paisley. P. 408. 



