666 PHILOSOPHICAL TRANSACTIONS. [aNNO 1723. 



of the ring on his body ; but when he considered the situation of the sun in 

 respect to the ring, he found that belt could not arise from such a cause. 



He says, that at times he has seen with this telescope 3 different satellites of 

 Saturn, but could never have the good fortune to see all the 5. 



Aug. 1723, Mr. Hadley adds, that he has several times seen the shadow of 

 the first, second, and third satellites of Jupiter pass over the body of that 

 planet ; and that he has seen the first and second appear, as a bright spot on 

 the body of Jupiter ; and has been able to keep sight of them there for about a 

 quarter of an hour, from the time of their entering on his limb. 



Jupiter's satellites have of late years been so situated, with regard to the 

 earth and Jupiter, that he has not had sufficient opportunity of observing the 

 transit of the fourth satellite, or of its shadow. 



The dark line on the ring of Saturn, parallel to its circumference, is chiefly 

 visible on the ansae, or extremities of the elliptic figure, in which the ring 

 appears; but he has several times been able to trace it very near, if not quite 

 round; particularly in May 1722, he could discern it without the northern 

 limb of Saturn, in that part of the ring, that appeared beyond the globe of the 

 planet. The globe of Saturn, at least towards its limb, reflects less light 

 than the inner part of the ring, and he has sometimes distinguished it from the 

 ring by the difference of colour. 



The dusky line, which in 172O he observed to accompany the inner edge of 

 the ring across the disk, continues close to the same, though the breadth of 

 the ellipse is considerably increased since that time. 



y4n Account of an Extra-Uterine Foetus, taken out of a Woman after Death, 

 that had continued Five years and a half in the Body. By Robert Houstoun, 

 M.D. N° 378, p. 387. 



A woman near Newport-market, who had been married 18 years to a native 

 of the East Indies, by whom she had 8 children, besides two miscarriages, was 

 in August 1717, with child in a second marriage. 



She was near her full time, and had felt pains for several days, which, re- 

 turning by intervals, she concluded would, as usual, bring on her delivery. 

 Her mother and the midwife, apprehending no difficulty, assured those about 

 her, that time only was wanting. 



But it was found on examination, that her womb was of no bulk to contain 

 a child near its time ; and that its neck, of an uncommon hardness, was also 

 closed so straitly, as not to admit even of a small probe or knitting needle. 



Dr. H. on this declared that her delivery was impossible ; because the child 

 was not within the womb, but between the womb and the guts : that it might 



