VOL. XXX.] PHILOSOPHICAL TRANSACTIONS. 273 



calculation, that Jupiter's nodes have not sensibly moved for these 83 years last 

 past ; being in 2,* 8° 35' from the first of Aries. 



The same astronomers have been as diligent in making that other remark- 

 able observation of Mars's transit near the north star in the forehead of Scorpio. 

 For, on the 5th of February in the morning, or the 4th, l6^. Mars was seen so 

 near the said star, that it could not be discerned by the naked eye; but by the 

 telescope it was found above it, and to the east, consequently Mars was not yet 

 in conjunction with it. At l6^ 10"^ apparent time, Mars was in a straight line 

 with the northern star of Scorpio's forehead, and the telescopic star, which 

 follows it, to the north, at about 8' distance. At 1 6^ 35"^ Mars was in a right 

 line with the north and middle star of the forehead; and a quarter of an hour 

 after, with the south star of the forehead; so that the conjunction was esti- 

 mated as to long, at l6^ 54™ apparent time; at which time Mars was only 2', 

 pretty accurately, more southerly than the star. Mr. Pound also observed the 

 conjunction, as to right ascension, at 17^ ^S*" apparent time, with the distance 

 of the centres o! T'. It was an agreeable sight to see Mars gradually entering 

 on the star, and plainly discovering his motion, though otherwise exceedingly 

 slow. 



Compare this with Horrox's observations Feb. 7> in the morning, l638, 

 which see in his Letters, p. 304. For at that time Mars coming to the same 

 star, approached it much nearer, but the conjunction was over before his rising. 

 Add to these an observation of Saturn made by Mr. Pound, Jan. 23, at 12^ 25™ 

 equated time, when the planet was distant from the 58th star of Virgo in Catal. 

 Britan. 13' i& towards the south, and the star in 19° 2l'32'^ of Libra, with 

 2° 47' 25''' N. lat. followed it 2' 3(y' of right ascension. 



An Account of a tessellated Pavement^ Bath, and other Roman Antiquities, lately 

 discovered near East Bourne in Sussex. By Dr. John Tahor, of Lewes. 

 N^ 351, p. 549. 



The meadow in which the greatest part of the pavement lies is near a mile 

 and half south-east of Bourne; it contains about 4 acres, and is of a triangular 

 form: the southern side is towards the sea: on the northern side is a highway, 

 which leads from from Bourne to Pevensey: and the west side is, by a fence of 

 posts and rails, separated from a large corn field, in common belonging to the 

 parish. About the middle of this fence is the pavement, distant from high 

 water mark a furlong. In former times it might have been somewhat more, 

 because from this point to the westward, the sea is always gaining on the land. 



The pavement was little more than a foot below the common surface of the 

 ground: what lay next it was a small sea gravel; its position is nearly due east 



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