— 239 — 
the time of maximum obscuration, but it is reached earlier, 
and during annularity the curve is already descending rapid!y. 
The minimum preceding this maximum is not well developed; 
perhaps the oscillation between 11^ 13" and 11* 33” is con- 
nected with this minimum. 
The Sabang-curve is more like the Buitenzorg one and 
hence also more like that for Rocky Mount (1900) than the 
Karang-Sago one. 
The chief features of the eclipse effect are: 
an easterly deflection before 
a westerly 5 after the middle of the eclipse. 
Ld 
| The amplitude of the wave amounts to 0.8. 
| The agreement between the amplitudes for the three 
eclipses dealt with, is very striking, viz.: 
871 Buitenzorg. ¿Ed O 
1901 Karang-Sago . . . 0. 
1904 Sabang. EN: 45.74 0 
Buitenzorg. 
Minimum distance from central line 17°. 
Rib cone. . . IP 487 4 
Maximum phase. . 1 5 p. 
Last contact. . 42.96 P 
These times are calculated for Batavia; those for Buitenzorg 
44 K.M. south of Batavia will differ only slightly from them. 
Magnitude of obscuration 0.47. 
The values for D, H and Z for the day of the eclipse and 
the average ones for the quiet days of March 1904 follow 
hereafter and are plotted in the plate. 
Quiet days: March 6, 15, 16, 18, 24, 28. 
Average departures from the daily mean 
for the quiet days in March 1904. 
|. ] Ba gp koup pitied Noon | Tp [|| 2° beas 4.4 | 5 
D ,—1/3|—1/5 men 0747 | 107 ii | 0/8 | 0/7 | 0/6 
Hi 8» 20 30 | 37 15 #49 —T 
Z | 107 0 |—11 |—21 See |—32 |—21 | —9 | 1 6 
