184 Mr. Baily on an [Sept. 



directly on the centre of the sun's disc) to the inhabitants of that 

 part of the globe, at 2 h 56' 27" in the morning, corresponding to 

 12" 54' 39" (or h 54' 39" *) in the afternoon at Greenwich : 

 that the sun will be centrally eclipsed on the meridian (or 

 exactly at noon) in N. lat. 76° & 21", W. long. 17° 3' 15", when 

 it is l h 8' 16" in the afternoon at Greenwich ; and that the sun 

 will set centrally eclipsed in N. lat. 27° 10' 30", E. long. 46° 2' 

 4" at 6 h 12' 19" in the afternoon, corresponding to 3 U 8' 1 1" at 

 Greenwich. 



If-the points mentioned in the second and third columns of 

 the above table be marked on a good map, and lines be drawn 

 connecting these points, we shall have the path of the centre of 

 the moon's shadow across the globe. Whence it will be seen 

 that the centre of the shadow, having entered the earth's disc 

 near the North Pole,f will proceed between the Shetland islands 

 and the coast of Norway down the North Sea, and enter the 

 continent of Europe on the coast of Westphalia, about half way 

 between the Ems and the Weser. It will thence proceed, nearly 

 in a straight line, across Germany and the Tyrol country, and 

 enter the gulf of Venice about mid-way between Trieste an 

 Venice. Traversing that gulf it will cross the heel of Italy ; 

 and, after skirting the coast of the Morea and Candia, will pass 

 directly over Alexandria in Egypt, and finally leave the earth in 

 Arabia, near the Persian gulf. 



If we set off two other lines on the map parallel to this central 

 line, one on each side thereof, and each at the distance of about 

 130 geographical miles from the central line, the intermediate 

 space between these two boundary lines will nearly % represent 

 the path of the moon's umbra ; and will show all those places 

 where the eclipse will be seen annular, or where the whole body 

 of the moon will appear on the face of the sun. Some uncer- 

 tainty, however, may exist with respect to those towns which are 

 situated near the borders of the umbra, such as Rotterdam, Aix 

 la Chapelle, Liege, Treves, Freyburg, Parma, Rome, and other 

 places on the one side ; and Magdeburg, Leipsic, Ragusa, 

 Athens, and other places on the other side of the central path ; 

 since the eclipse may or may not be annular in the neighbour- 

 hood of those towns according to circumstances. Nevertheless 

 at all those places, and indeed to the whole of Europe and to a 



* That is, 54' 39" after 12 o'clock at noon. The English astronomers begin the 

 day at noon ; but the French reckon from midnight, as in the civil mode of reckon- 

 ing. There cannot, however, be any ambiguity in the present case as to the 12 h . 



+ It will traverse the supposed polar basin, and the north east coast of Green- 

 land, the object of so much laudable cuiiosity at the present moment; so that if 

 the adventurous navigators to those parts should not have returned before the date 

 of this eclipse, they will probably observe it in those high latitudes. 



^ It must be evident to those acquainted with the principles of astronomy, that 

 the umbra will not be exactly of the same width in any two points of its course; 

 but will be constantly varying. It will not, however, undergo any material alter- 

 ation in its progress across the continent of Europe. 



