of the variable Star in Sobieski’s Shield. 14,9 
the attempt; See Phil. Trans, for 1786. Yet in the present 
Paper I have omitted all such details, being aware they might 
be thought too voluminous, but hope at some future time the 
Society will honour them with a place in their library. 
The first sketch, Plate III. represents, for June 13, 179b, the 
comparative size of the bright spots supposed to surround the 
star, but here extended at full length ; the next eight following 
are spherical views, on an enlarged scale, for each quarterly 
rotation or less, shewing the principal changes, as expressed 
in the adjoining remarks, and corresponding with the observa- 
tions ; these being taken from my printed paper, as already 
mentioned, are marked in italics. It will be seen that the spots 
by which the changes are principally regulated, are placed at 
equal distances, yet intermediate ones might also frequently be 
inserted without occasioning any objection, but that of render- 
ing the explanations more complex. 
REMARKS ON PLATE III. 
Fig. 2. “ June 18 th. Full brightness Mag. bright 5th,” before 
or after which date the star would appear less bright, by the 
spot E being removed from the centre, and one of the others 
out of view. 
Fig. 3. “ July oft, 13 days or ^ rotation being elapsed since 
June 18 th, 5th Mag. a little decreased ” by the removal of the 
brightest spot E, the h being much less. 
Fig. 4. “ July 19th, 16 days or ± rotation 5 6 Mag. still de- 
creased, ” N being much less than h, now gone off. A slight 
minimum ” 
Fig. 5. “ July zyth, 8 days of the rotation, 5 Mag. rather 
