208 
earth with the setting sun at 18‘^ 4’* 56"' 38®, in lat. N. 4° I6'j 
long. E. 18° 57^ in the interior of Africa. 
The central line enters Spain a little to the west of 
Santander, and passes near Reinosa, Arnedo, Agreda, Calata- 
yud, Daroca, Calaraocha, Montalban, Morelia, and Oropesa ; 
every place situated within about 32', or 37 miles of this line, 
will experience a total eclipse of longer or shorter duration : 
the principal places on the north-east are, Bilbao, Espinosa, 
Vittoria, Logrono, Saragossa, Caspe, Alcaniz, Tortosa, and 
Peniscola; and on the south-west, Gijon, Oviedo, Burgos, 
Soria, Almazan, Molina, Teruel, Segorbe, and Valencia: 
the duration of totality at Reinosa is 3“ 35®, and at Oropesa 
3"‘ 27®. 
This eclipse will be visible to North America, Greenland, 
the North Atlantic Ocean, the whole of Europe, the north 
part of Africa, the west part of Asia, and at the North Pole. 
At Manchester, lat. N. 53° 29^ long. W. 2° 14', a partial 
Eclipse is visible, and 
<1 
h 
m 
S 
Begins 
July 18 
•r 
1 
32 
44 
Greatest Phase 
2 
42 
30 
Ends 
3 
48 
15 
I Mean Time 
^ at Greenwich. 
Magnitude of the Eclipse (Sun’s diameter =1) 0*821 on 
the Sun’s southern limb. 
( first contact, 77° towards the West 
Angle, from Nort Pole, of ^ contact, 1 26° towards the East 
( first contact, 98° towards the West 
Angle, from Vertex, of | 89° towards the East 
for direct image. 
For any place, not far distant from Manchester, whose 
geocentric North latitude is I, and East longitude X, the 
Mean Greenwich time t of beginning may be computed by 
the formulae, 
cos w = 0-87935 — [0-198201 sin / + [9-99911] cos I cos 
(X 4- 73° 47'-7) 
