86 C. J. MERFIELD. 
computed with Dr. Knopf’s elements equal . 
Ds: 2 Ih, s. 
=, 19 53 50-44 
o, =+ 6° 52 588 
these co-ordinates are referred to the beginning of the year 1897. 
Applying to each the mean residuals found in Table I., we 
obtain 
a ee 8. 
a = 19 58 (61-37 
6, = + 6 53). 52°-5 
Second Normal.—The residuals, that have been applied to the 
computed right ascension and declination for the second normal, 
are found in Table II., the computed co-ordinates being for the 
sixty-eighth day of the year 1897 thus— 
Re as 8. 
om 19 42. G89) 
6, = -—35° 10’ 337-0 
be In, s. 
Ge 19 42 OTT 
5, = —35° 10’ 2372 
Third Place.—After applying the correction for parallax to 
Mr. Tebbutt’s observation, taken on the date 1897 April 19°89, 
also referring the co-ordinates to the beginning of the year, and 
correcting the time for the aberration of light, the result is a8 
follows— . 
Ail 18807 | a, = 10 33 350 
GALT. 5, = —66° 15’ 497-46 
Collecting together the separate results we have 
t x 
1896 Nov. 300 19 53 5137 + 6 53 525 
1897 March 10-0 19 42 55°71 -35 10 23:2 
1897 April 19-8875 10 22 3560 -66 15 49:5 
These co-ordinates are referred to the mean equinox of 1897. 
Adopting the ecliptic of 1897, as the fundamental plane, the 
above co-ordinates are changed into longitude and latitude by the 
usual formule for the purpose. A better check on this calcula- 
