370 



'"" (©. 352.) >AVIien wescc«, fflgt ölt 3ol)n .$>erfd;el, »^in 

 Ihe Coal-sack (near a Crucis) a shaiply defined oval space Iree 

 froni Stars, il would secra much less probable that a conical or 

 tubulär hollow travcrscs Ihc wholc ot a starry Stratum, conti- 

 iiuously extended Irom the eye oulwards, than that a distaiU 

 mass of comparativcly nioderatc thickness sliould be simply per- 

 forated froin side to side « Outlines § 79'i p. 532. 



' (©. 353.) Lettre de Mr. H o o k e ä Mr. Auzou t iw 

 be» Mem. de l'Academie IGtJti — 1699 T. VII. Partie 2. p 

 30 utlb 73. 



' (©. 353.) .^o^niü^ 9Ab. 1. e. 161. 



