238 Mr. Heascuer’s Od/ervations 
1783, Sept. 25. 12h. 30’. The bright fouth polar fpot a, fig, 
15. feems to be fixed in its place, and:goes nearly up 
to the margin of the difk; itis perfectly round. 
i2h. 55’. The track of the equatorial {pots is incurs 
vated, being convex towards the north, fee e, q, fig. 
23.: this confirms the white fpot’s being at the fouth 
pole. With long attention I can perceive the edge 
of the difk of Mars beyond the fpot, extending about 
2 diameter of the fpot. 
Sept. 26. 12h. 10% The {pot 2 isin a line with the 
center and the end of the hook, fig. 16. 
‘Sept. 27, 28, 29. The fpot as ufual. 
Sept. 30. toh. 30’. The polar fpot as in fig. 17. 
‘Od. 1. gh. 55’. Iam inclined to think, that the white 
{pot has fome little revolution, and therefore is not 
with its center exactly at the pole of Mars; it is 
rather probable, that the real pole, though within 
the ipot, may lie mear the circumference of it, or 
one-third of its diameter from one-of the fides. A 
few days more will fhew it, as I thrall now fix my 
eetioalay attention upon it. 
toh. r7’. The bright {pot is cebtaiabs not Pifo far upon 
the difk as it ufed to be formerly,; and, is either 
reduced or has a fmall motion ; which of the two 
is'the cafe will be feen in a few hours. 
23h. 3. The bright {pot has a little motions for it is 
now come farther into the difk. 
I concluded now, in general, that none of the bnght fpots 
on Mars were exactly at the poles, though they could certainly 
not be far from them: for what has been juft related of the 
4 ft, 

