of Double Stars . 49 
3L be ft | diameter of S, ; with 1504, f diameter, well- 
defined, and the difference of colours fifill vifible ; with 
2176, not quite a diameter of S, pretty well defined, 
buf: exceedingly tremulous; with 2589, lels than 1 
diameter; with 3168, hill pretty diftindt, and about 
| diameter of S ; with 4294,, more than a diameter of 
S, but attended with the utmofi; difficulty of managing- 
the motions; with 5489, the interval hill fomewhat 
larger, and if the objedt could be kept in the center of the 
field, the eye might adapt itfelf to the focus, and 
get the better of the violent aberration; but the edges 
of theglafs. being of a different focus, the eye is con* 
flantly difappointed in its endeavours to define the ob- 
jedt ; with 6652, I had but a fingle glimpfe of the ftar 
quite disfigured ; however, I afcribe it chiefly to the 
foulnefs of the glafs, which, on account of its fmalJ- 
nefs, is extremely difficult to be cleaned;, with a 10-feet 
refledtor, 9 inches aperture, power 626, above § dia- 
meter of S. very diftindt; with a 20-feet refledtor, 
power 350, too bright an objedt to be quite diftindt, 
though I fee it very well. Pofition f 24'’ n. following. 
A third filar preceding. Dift. pretty accurate 
for fio great a d iff a nee. Pofition 3 1° o ; n> preceding. A 
fourth filar preceding the third, and fomewhat fmaller. 
29. Parvula juxta Fl. 44 am Leonis, 
Feb. 17. Double. About \ f .following the 44th Lepnis, which 
•3782. being double in the finder, this is the leaf: of the two. 
Extremely unequal. L, w. S. d. With 227, 1 4 dia- 
meter of L. ; with 460, 2 diameters of L, Pofition 
26° .32' n. following.- 
Vol. LXXV. H 36. Secunda 
