730 EAEL OF EOSSE ON THE CONSTEUCTION OF SPECULA OF 6-FEET APEETIJEE, 
Number in 
Number 
Herschel 
S 
of times 
Catalogue. 
observed. 
1746 
1754 
2 
1755 
1 
1757 
1 
1762 
2 
1764 
1 
1766 
2 
1768) 
1 
1769 j 
1770 
1 
1771 
5 
1773 
2 
1774 
1 
1776 
1778' 
1779 
4 
1782' 
1 
4 J 
1783 j 
f 
1 
1788' 
1789 
2 
1791, 
1790 
1 
1792] 
0 
1793 1 
> 
1797 
2 
1799 
2 
1804 
2 
1805 
1 
1813 
2 
1815 
1 
1817 
1 
1818 
1 
1820 
2 
1825 
1 
1829 
1 
1833 
1 
1835 
1 
1840 
2 
1842 
2 
1843 
1 
1844] 
1 J 
1845 j 
> 
1848 
2 
1851 
3 
1861^ 
1864 > 
1865 J 
^ { 
1854 
6 
1857] 
o I 
1863 
> 
" 1 
1870 
2 
1872 
2 
1873 
2 
1874 
2 
1879 
2 
1880 
2 
Description. 
Close, rather F. cl. 
Mar. 27 , 1856. S ; hM ; mE. np, sf. 
Mar. 9, 1851. E. 
Mar. 29, 1856. 2 neb. 3' apart; n. one vS; bM ; the other a ray p. and f; nucleus. 
Apr. 13, 1850. 3 knots near. 
Apr. 19, 1855. Long narrow ray, mth a S, E, vF. neb. sf. About 15' np. of 1764 is 
another vF ; and about 6' p. and 1' n. of this last is another eeF. 
Apr. 13, 1852. bM ; S. * s. of it. Mar. 30, 1856. E. nearly n. and s ; S. ilf sf ; B. nucleus. 
Mar. 1, 1851. 1768 S; F; E; 1769, nucleus. 
Mar. 6, 1851. Another 5' p, and another 10' sp; vF. 
Apr. 10, 1852. Either a d. neb, or 2 knots of one neb. 
Apr. 29, 1856. mE ; not F ; IbM ; major axis sp, nf. 
May 10, 1858. S ; irreg ; E. 
Frequently observed ; nothing certain. 
Nova ” near ; Ist E, 2nd bM, 3rd vF. 
May 12, 1850. 1782 pB; L; gbM. 1783 vB; E; nucleus. Another L. F. ray about 16' 
nf. 1783. 
Only two found ; both S ; E ; bM. 
May 15, 1854. pL ; vF ; IbM. 
Both F. 
Mar. 28, 1856. E ; pB. Its brightest part is nearest f. edge, and forms a curve round n. 
Mar. 29, 1856. pL ; IE. n. and s. 
Mar. 1, 1851. d; bM; two others F. 
Mar. 28, 1856. Long narrow ray ; F ; bM. 
Apr. 13, 1852. vgvlbM ; filamentary appearance of the branches quite apparent. Though 
immistakeably a cl, yet on a very bad night it would be seen as a neb. 
Apr. 17, 1855. E. sp. nf; nucleus. 
A B. d. neb. 
Apr. 19, 1849. r? 
Apr. 9, 1852. S ; bM. 
Mar. 6, 1851. vlbM; S. ^ f. 
Mar. 1, 1851. Nucleus ; IE. 
Apr. 14, 1852. E ; vlbM. 
Mar. 29, 1856. pL ; gbM ; * in f. edge ; between this * and the centre the neb. seemed 
black. 
May 10, 1858. IE ; vF. and flickering. 
Apr. 11, 1850. Narrow ray; bad night. 
Apr. 26, 1851. Within trapezium of 4 or 5 *s ; IE. n. and s; vlbM. 
Apr. 13, 1855. The p. one is IE. p. and f, and is the larger of the two. The other is S ; 
E ; pF. and bM. 
Apr. 11, 1850. E. Central part seems unsymmetrically placed with respect to general 
fig. of neb. Apr. 13, 1850. 3 “ novae ” near ; one of them mottled, and in s. border. 
Apr. 16, 1858. S ; B; with B. sharp nucleus, and * involved n. of nucleus ; 2 “ novae” near. 
Apr. 16, 1855. 1861 is a narrow ray ; 1864 is S. and E ; 1865 is quadruple, and suspected 
to be one neb. connected by F. neby. 
Nucleus ; dark ring suspected. Eke 450, but no conclusive evidence. 
Apr. 7, 1851. Light mottled; another f. about 12', and a little s ; E ; bM. Apr. 13, 1852. 
SpiraEty suspected. 
IbM. 
May 10, 1855. pB ; E ; nucleus ; E ; mottled. 
May 15, 1854. pB ; S ; E ; bM. 
Apr. 25, 1848. E ; * at each end. 
May 14, 1855. vF ; nucleus or in centre. 
May 16, 1855. 2 neb, with 3 B. *s in the neighbourhood. Both F. and E. 
