on the Planet Mars. 237 
1781 ; Auguft 23. 8h. 44’. a as ufual, and part of 4 vifible, 
fig. 12) 
Be ot. 4. The white {pot a is very eect Hy 
sce May 29. Mars has afingular appearance. Ata, fig. 13.. 
is the polar fpot, whichis bright, and feems to pro- 
ject above the difk es its {plendour, caufing a break. 
atc. 
July 4. 2 is very bright. 
July 23. t4h. 45’. a isvery lucid. 
Auguft 16. I faw the bright fpot with the 20 feet 
refleCtor as ufual.. » 
Aug. 26. The lucid {pot'on Mars is its fouth pole, for 
it remains in the fame place, while the dark equato- 
rial {pots perform their conftant ee it is: 
nearly circular. 
Aug. 29. The fouth pa {pot is in the Casi fituation.. 
septog) Asufualy: 9. 
_ Sept. 22. The fouth’ polar {pot is of a circular fhape,, 
and very brilliant and white. I hada beautiful and 
Vv diftinét.'view: of it when it was about the meridian,. 
and meafured its little diameter in the equatorial di- 
fi | re€tion of Mars. )With a power. of 932 it gave - 
“ qr’, and I faw it very diftinGly.» The outward 
edge of the fpot came juft up to the upper limb; a. 
favourable hazinefs, taking off every troublefome 
ray, gave me objects in general exceedingly well de- 
fined, efpecially Mars. 
Teas. 24, 6h. 55’.. Vheypolar e ay, fe 14. as ufual.. 
Sept. 24. The fame. 
1.78 3,, 
