«= EY ce 
Total Solar Eclipse of May 17, 1882. 
Course of central line: Afrika, Arabia, Central- Asia, 
Westerly-China. Minimum distance from Zi-Ka-Wei + 2°. 
Minimum phase at Zi-Ka-Wei + 5" 9" p 
According to the magnetograms of Zi-Ka- Wei the eclipse-day 
was magnetically quiet, and no obvious waves in the part of 
the curves registered during eclipse-time are to be observed. 
The average values for the period 6-9 May, (quiet at 
St. Petersburg) have been used to obtain a normal curve. 
The deviations of the daily means follow hereafter; they 
are plotted in the plate. 
E. D. H. Z. 
May 17. May 6—9. May17. May6—9. May17. May6—93. 
Noon —1.7 — 2/5 47 167 —19» —15 7 
1* —2.6  —3.8 8 28 — 6 —10 
2 33. —4.0 2 32 — 2 sree: 
3 —3.3 —3.2 6 23 ri i 3 
B —2.8  —2.0 15 14 —17 7 
4 30" —2.3 
5 ie —0.1 13 8 —17 9 
530 —0.5 
6 0.4 ' 0.8 5 —38 —12 9 
7 1.0 —0.3 6 — 6 — 9 6 
8 0.8 —0.5 T — 8 — 9 5 
9 0.5 —05 2 —8 2 7 
10 04 —0.4 —6 — 6 3 3 
11 0.1 —0.2 —4 5 7 4 
The D-curve shows a slight wave of westerly deflection to 
an amount of some tenths of a minute between 4* and 5h p- 
The H-curve differs strongly from the normal one and 
shows maxima at 1" p, 4^ p and 8^ p, minima at 2" p, 6* p 
and 10* p. The amplitudes of these waves are large and 
it is probable, that we have to deal with the effect of a 
defective application of temperature correction. This question 
will be treated later on. ' 
If we assume the waves before and after totality to be 
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