2 THE ANTARCTIC MANUAL. 
Contact on sun’s limb, # + 18° 10'*3 from the North point towards 
the East ; and applying the longitude expressed in time to ¢ the local 
mean times of the commencement and ending of the Eclipse are 
obtained. The quantities within square brackets are logarithms, 
and those in the second equations, logarithms of seconds of time. 
The correction to be applied to the geographical to obtain the 
geocentric latitude (/) is, for 
° w 
70. 2 TO 
TA. ~ =? 
72 »- —6°9 
13: . —6°6 
Uae. . — 6:2 
75. . —5°9 
76. » — 5°95 
LE . 51 
13 . —4°8 
12 . — +4 
The correction is to be subtracted (numerically) from the geographical 
latitude. 
OCCULTATIONS. 
The list appended includes those stars of the ‘Nautical Almanac’ 
Catalogue, to magnitude 5:5 inclusive, the occultation of which may 
possibly be visible in 75° South latitude and 165° East longitude. In 
order to ascertain with certainty whether any star is occulted, and 
the circumstances of the occultation, the formule given on pages 
626-628 of the ‘Nautical Almanac, 1902,’ should be employed. A 
copy of a table to be used with the formule is given. An example, 
illustrating the use of the formule for an actual case, is appended. _ 
