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DESCRIPTION— {Continued)

A fine, bright spiral 3' x 115 in p.a. 42°. Nucleus bright, somewhat elongated, almost stellar. The whorls are rather compact, with numerous irregular condensations. 14 s.n

A small oval 015 long with bright center; no spiral structure discernible.

A compact, rather bright spiral 2'x 115 in p.a. 165°. Bright nucleus; the whorls are broad and unmarked by condensations.

A fine, nearly edgwise spiral 7' x 018 in p.a. 170°; quite bright. Bright, elongated nucleus. A broad dark lane runs along the spiral to the east of the nucleus. Most of the nebular matter is to the west of this lane, there are no prominent condensations other than the nucleus. See Abs. Eff. 18 s.n.

A very compact spiral 2' x 1'; the nucleus is rather large and quite bright. The broad whorls merge so completely that the disk is of nearly equal brightness throughout; there arc no condensations. 16 s.n.

A faint oval patch 014 long; no structure apparent, but doubtless spiral.

Nearly round; about VA in diameter; very faint on the periphery, increasing to a quite bright, almost stellar nucleus; no spiral structure discernible.

Nearly round, 015 in diameter; small nucleus; slight traces of spiral character.

A faint patch of nebular matter about 013 in diameter, showing a faint nucleus and some evidences of spiral structure.

A very faint, nearly round, open spiral V.5 in diameter; stellar nucleus; several faint, almost stellar condensations. 12 s.n.

A minute oval 012 long, with an almost stellar nucleus; doubtless spiral.

There are two objects near this declination, one preceding, and the other following the N. G. C. position. Both are very small, nearly round; no structure apparent.

Fairly bright center; oval; V.6 long; spiral.

Almost stellar; no structure visible.

Slightly elongated; almost stellar; no structure visible.

Very faint spindle 017 long. There is no object in the N. O. C. place for 5841. This nebula fits the descriptions F, S, E, though perhaps too faint to be seen visually. 5846 15 1.4 + 1 59 Round, 1' in diameter; no structure apparent. Star at south does not appear

to be physically connected with the nebula.

An elongated spiral 016 long; strong center; Andromeda type.

This is a faint but interesting 0-type spiral. Stellar nucleus; nearly round ring 212 in diameter formed by the whorls; a straight line of nebulous matter across this ring, with faint, almost stellar condensations at the ends. 16 s.n.

Vol. VIII, Plate 50. Described as a double nebulae in the N. G. C. 5857 is a bright, compact, somewhat oval spiral 1' long, with a bright, almost stellar nucleus; whorls of uniform texture. 5859 is 216x016 in p.a. 130"; apparently a 0-type spiral seen at a considerable angle, with most of the matter in one large whorl. The nucleus is almost stellar; there are a few condensations. Moderately bright. 5 s.n.

Minute oval patch 012 long.

Vol. VIII, Plate 51. Very bright, 3' x V in p.a. 125°. No spiral structure is discernible, but it appears to be a spiral of the Andromeda type seen edgewise. Its most striking feature is a narrow, clear-cut dark lane along the middle, making a slight angle with the major axis. See Abs. Eff. 37 s.n.

Almost stellar.

A faint oval 018 long; probably spiral.

Vol. VIII, Plate 52. M. 5. A beautiful, bright globular cluster; the main portion is about 12' in diameter. 4 s.n.

Il'x016 in p.a. 156°, rather bright. A dark lane runs down the entire length; nucleus hazy; a few condensations. 5906 is simply the strip to the west of this lane. See Abs. Eff. 13 s.n.

Very interesting and typical 0-type spiral. Fairly bright nucleus, about which is an oval 118 long, whose longer axis is crossed by a straight lane of matter; from the ends of this oval spring the two main whorls of the spiral; other fainter whorls are visible. Diameter about 5'. Eeproduced in Publ. Astr. Soc. Pacfiic, October, 1912. 43 s.n.

Small, faint, nearly round spiral 016 in diameter.

Slightly oval center with weak stellar nucleus; about this is a nearly circular ring 1' in diameter. Of rather irregular structure; a spiral with some traces of the 0-type. 17 s.n.

A narrow spindle 215 long in p.a. 135°. Well-marked absorption lane effect on the northeast side. See Abs. Eff.

Slightly oval, V long. Center very bright, rather large, and without definite nucleus; no spiral structure discernible.

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DESCRIPTION— {Continued)

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A fine spiral 4'x 2' in p.a. 5°. Bright, almost stellar nucleus; whorls rather

faint and narrow, but quite regular. 19 s.n.
A rather faint, nearly round, irregular, compact spiral 0'.8 in diameter.
Very small and rather faint; perhaps a spiral.
Described as "*7 in photosphere." Non-existent? No trace in an exposure

of lh 10m. 16 s.n.
Planetary. 14 s.n.
A fine, moderately bright spiral 3' x 116 in p.a. 60°. Elongated bright nucleus;

whorls are rather open, and show a number of almost stellar condensations.

44 s.n. Very large diffuse nebulosity near v2 Srorpii. This is exceedingly faint in an

exposure of 2h, and can doubtless be best recorded with a portrait lens

and very long exposure. 0 s.n
Planetary. 4 s.n.

Small, bright, globular cluster; the diameter of the brighter part is 3'. 5 s.n.
Two very small and faint nebulous patches whose faint nuclei are 15" apart. Not

planetary. 34 s.n.
Bright globular cluster; the brighter part is 3' in diameter; with fainter ex-
tensions about 8'. 2 s.n.

Small spiral 2'x 017 in p.a. 0". Bright almost stellar nucleus; two main whorls.

5 s.n.

A rather bright spiral of S-shape, 118 long. The whorls are rather irregular, with numerous condensations, which are not stellar. There is apparently no true nucleus; there is a star of magn. 13 almost precisely in the place the nucleus should occupy, but it seems to be a bona-fide star, and not an almost stellar nucleus. 11 s.n.

Vol. VIII, Plate 53. M. 13, the Great Cluster in Hercules. 10 s.n.

A moderately bright spiral 2' x 017 in p.a. 18°. Whorls are broad, patchy, and indistinct. There is a star of magn. 13 almost precisely in the position the nucleus should occupy; it does not appear to be a nebular nucleus, and is probably simply projected on the nebula.

Planetary. 5 s.n.

Vol. VIII, Plate 54. Fine globular cluster; central part about 2'; outer about 8' in diameter. Apparently somewhat less compact than most globular clusters. 0 s.n.

Bright, greatly condensed globular cluster 3' in diameter. 26 s.n.

Fine, bright globular cluster; diameter about 8'; central brighter part about 2'. 0 s.n.

Bright globular cluster, greatly condensed at center; this central part is 115 in diameter; main part of cluster 6'. 0 s.n.

Planetary. 0 s.n

A small, comparatively faint globular cluster, 115 in diameter. 1 s.n.

Rather faint, nearly round spiral 017 long; two-branched. Faint, almost stellar nucleus. A somewhat smaller, very faint spiral is 9' n.

Planetary. 0 s.n.

The probabilities are that this is a small, faint, sparse cluster, although there seem to be some traces of spiral formation. 0 s.n.

Bright globular cluster 3' in diameter. 2 s.n.

Bright, unusually condensed globular cluster; cluster about 10' in diameter; the bright central portion 2'. M. 92. 24 s.n.

S-shaped "hole" or dark nebula. This remarkable object is about 22' long; would show better on plates taken with instruments of shorter focus. It lies in a dense region; the object itself is almost perfectly blank. 0 s.n.

Small globular cluster about 2' in diameter. 1? s.n.

This is not a nebula, but a rather sparse cluster of faint stars about 6' in diameter. From the division into two magnitude classes, it appears to approximate to the globular type. 0 s.n.

Planetary. 0 s.n.

A remarkable vacant region in the Milky Way southeast of 8 Ophiuchi. Shows almost no stars in an exposure of lh 50m. 0 s.n.

Bright globular cluster, diameter 6'. 0 s.n.

A small, rather sparse cluster of faint stars, about 2' in diameter. 0 s.n.

A nearly round, rather open, moderately bright spiral 2' in diameter. Sharp, elongated nucleus; a number of almost stellar condensations in the whorls. 39 s.n. 6426 17 39.9 + 3 13 A faint, rather open cluster, 2' in diameter; possibly globular; the fainter stars

form an apparently nebulous background. 0 s.n.

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NGC a , DESCRIPTION— (Continued)

6439 17 42.5 —16 27 Planetary. 0 s.n.

6440 17 42.9 —20 19 A bright, very compact cluster, about 115 in diameter. There are distinct

traces of spiral formation, so much so that it was at first thought to be a

spiral nebula when found near the edge of a plate of a neighboring region.

Cf. Publ. Astr. Soc. Pac., 30, 161, 1918. 6445 17 43.3 —19 59 Planetary. 0 s.n. 6482 17 47.5 +23 6 Bright, round, O1:l in diameter; very close to 11 magn. star; 17' n.f. is a small,

faint spindle 115 long in p.a. 140°. 10 s.n. 6503 17 50.4 +70 11 A fine bright spiral 5' x 1' in p.a. 125°. Rather faint, almost stellar nucleus.

Marked absorption effects on southwestern edge. Whorls are compact,

patchy, and indistinct. See Abs. Eff. 14 s.n. 6495 17 50.5 +18 21 Round, 016 in diameter. Bright, rather large center; slight traces of spiral

character.

6499 17 51.0 +18 24 Described in the N. G. C. as a small double star in nebulosity. There is a double

star in this position, but no surrounding nebulosity can be detected.

6500 17 51.6 +18 21 Slightly oval, 112 long. Bright, rather large nucleus; whorls indistinct. 16 s.n.

6501 17 51.7 +18 24 Nearly round, V.A in diameter. Bright, rather large nucleus; no certain evi

dence of spiral character. 6514 17 56.3 —23 2 Vol. VIII, Plate 55. M. 20; the remarkable Trifid Nebula in Sagittarius. Very

bright diffuse nebula covering an area 24'x 20', with remarkable dark lanes. 0 a.n. 6517 17 56.4 — 8 57 A very small cluster of faint stars; brighter center 012 in diameter; whole

cluster about 018. Of globular type? 0 s.n.

17 56.6 —27 50 A wonderful example of a dark nebula, lying in a remarkably dense region

of the Milky Way. Discovered by Professor Barnard in 1883. Of rather irregular contour, about 6' x 4'. The most striking portion of this object is the roughly circular protuberance at the southwest corner; here the edges are defined with almost perfect sharpness, and there is an astonishingly abrupt transition from a region filled with faint stars to one absolutely blank. At this point one can really "see" the sharp edge of the dark body. On the eastern edge the transition is somewhat less abrupt. See Abs. Eff. 0 s.n.

A coarse cluster of bright stars, located to the east of the dark nebula mentioned above.

Vol. VIII, Plate 56. M. 8; the great diffuse nebulosity in Sagittarius; very bright, and of wonderfully intricate structure; covering an area at least 50' x 36'. 0 s.n.

Planetary. 16 s.n.

Planetary. 0 s.n.

Faint, slightly oval spiral 2' long; rather patchy. 4 s.n.

Planetary. 0 s.n.

Planetary. 0 s.n.

Small globular cluster 2' in diameter. 0 s.n.

Planetary. 1 s.n.

Moderately bright, slightly oval spiral 1' long. Whorls rather compact; almost stellar nucleus. 6 s.n.

Planetary. 0 s.n.

Planetary. 0 s.n.

Two dark nebulae, noted by Barnard in Ap. Jour., Dec., 1913. The larger western object is about 14' x 8', and the contrast between the dense Milky Way region and the vacant spots is very striking. The edges are less clearcut, and the transition less abrupt than in the object at 17" 5en^. Professor Barnard 's portrait lens photographs of these objects are reproduced in Lick Obs. PubL, 11, Plates 54 and 55. 0 s.n.

6589 18 10.3 —19 50 Star of magn. 9 surrounded by faint diffuse nebulosity about 2' in diameter.

A broad, very faint wisp is 5' east and 2' north, and is perhaps an extension of the main nebulosity.

6590 18 10.5 —19 55 A double star surrounded by rather bright diffuse nebulosity filling an area

about 2' square, extending mainly to the south of the stars. There is a very clearly marked "hole" in the nebulosity southwest of the southern star, about 013 in diameter. There is very faint diffuse nebulosity about a star 14' n.f. 6590. 6595 is non-existent as such; evidently identical with 6590. 0 s.n.

Vol. VIII, Plate 58. M. 17; the "Horse Shoe" or "Omega" Nebula. Very bright, very large diffuse nebulosity, showing a wealth of detail, filling an area about 26' x 20'. 0 s.n.

Planetary. 0 s.n.

Bright small globular cluster 2' in diameter. 0 s.n.

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DESCRIPTION— (Continued)

Bright globular cluster 4' in diameter. M. 28. 0 «.n.

Planetary. 1 s.n.

Moderately bright spiral 3' z V.\ in p.a. 40*. Faint hazy nucleus and sereral

hazy condensations in the eompact and rather patchy whorls. 8 Sjl. Bright globnlar cluster 3' in diameter. M. 69. 0 s.n.

Description in Bulletin 219 in error; a small and relatively inconspicuous cluster; probably not globular. 6654 18 26.3 +73 7 A slightly oval *-type spiral V.7 in diameter. Nucleus fairly large and bright,

and the nebular matter in the diametral band is of moderate brightness. , The ring formed by the outer whorls is exceedingly faint. 11 Sjl

Planetary.
Planetary.

M. 22. A beautiful globular cluster, 12' or more in diameter. 0 s.n.
Rather faint spiral 2f5 x K5 in p.a. 170°. Very faint nucleus. Well-marked
absorption effect on eastern side; whorls compact and indistinct. See Aba.
Eff. 49 s.n.
M. 70. Bright condensed cluster 2' in diameter; doubtless globular. 0 s.n.
Binuclear; the nuclei are 7T7 apart in p.a. 82°. Rather faint; no traces of
spiral character. Not a planetarv; shows continuous spectrum. 013 long.
21 s.n.
Described as a planetary. Search with the slitless spectroscope diselosed no

object of planetary type anywhere in this region.
Planetary.

M. 11. Bright, rather open cluster & in diameter; not globular. 0 s.n.
Somewhat condensed cluster 2' in diameter. Apparently not of globular type.

0 s.n.
M. 54. Remarkably condensed globular cluster 2' in diameter. 0 s.n.
Vol. VTII, Plate 59. M. 57; the well-known Ring Nebula in Lyra. Planetary.

See the sketch included in the paper on Planetary Nebulae. 5 s.n.
Planetary. 0 s.n.
Planetary. 0 s.n.

Not a nebula as described in the N. G. C. but a cluster of faint stars 115 in diameter. Apparently not globular. An irregular rift runs in to the center. 0 s.n. 6766 19 7.1 +46 6 Described as a stellar planetary. Search with the slitless spectroscope disclosed no object of planetary type in this region. 6772 19 9.4 — 2 53 Planetary. 0 s.n. II 4846 19 11.0 — 9 14 Planetary. 0 s.n.

6779 19 12.7 +30 0 M. 56. Kather bright, condensed cluster 3'in diameter. Probably globular. 0 s.n.

19 12.8 —1 38 Fine "hole" or dark nebula 10-x 4'.

6778 19 13.1 — 1 48 Planetary. 2 s.n. 6781 19 13.6 + 6 21 Planetary. 0 s.n. 6790 19 17.9 + 1 19 Planetary. 0 s.n.

6803 19 26.6 +9 52 Planetary. 0 s.n.

6804 19 26.8 +9 1 Planetary. 0 s.n. 6807 19 29.6 +5 29 Planetary. 0 s.n.

19 30.9 +30 19 Wolf Rayet hydrogen envelope star; B. D. +30°, 3639, magn. 9.3 While the

spectroscope has shown the varying sizes of the monochromatic images of this object, the direct photographs, ranging in exposure time from 10s to 30TM, show no nebulous atmosphere about the star. This is probably due to the fact that such nebulosity is too faint to show in the short exposures and is masked by halation effects in the longer.

M. 55. A fine globular cluster 10' in diameter. The background of faint stars is less dense near the center than in most clusters of this type. 4 s.n.

HCyqni. Exposure of lb 50m shows no nebulosity about this star at minimum; cf. Espin, M. N., May, 1912. 4 s.n.

Faint, nearly round spiral 2' in diameter. Whorls rather open; stellar nucleus. 3 s.n.

Planetary. 4 s.n.

Planetary. 10 s.n.

Planetary.

Rather sparse globular cluster 5' in diameter. 0 s.n.

Vol. VIII, Plate 60. M. 27; the "Dumbbell" Nebula in Vulpeaila. Planetary.

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NGC B g . DESCRIPTION— (Continued)

6864 20 0.2 —22 12 M. 75. Bright, compact globular cluster 2' in diameter. Greatly condensed at

center. 9 s.n. 6879 20 5.9 +16 38 Planetary. 0 s.n. 6881 20 7.2 +37 7 Planetary. 0 s.n. 6884 20 7.2 +46 10 Planetary. 0 s.n. 6886 20 8.3 +19 41 Planetary. 0 s.n. 6888 20 8.8 +38 6 A moderately bright, irregular, crescent-shaped band of diffuse nebulosity 18'

long; network formation. 0 s.n. 6891 20 10.4 +12 26 Planetary. 0 s.n.

6894 20 12.4 +30 16 Vol. V1II, Plate 61. Annular nebula in Cygnus. Planetary. 0 s.n. II4997 20 15.6 +16 25 Planetary. 3 s.n. 6905 20 17.9 +19 47 Planetary. 4 s.n. I1317 20 18.2 + 0 20 Moderately bright oval 012 long; no structure apparent. Not planetary; shows

continuous spectrum. 0 s.n.

20 21.1 +42 0 Faint diffuse nebulosity 2' in diameter about the star B. D. +41°, 3731.

20 21.3 +42 4 Bright diffuse nebulosity of Pleiades tvpe 2' in diameter, surrounding the star

B.D. +41°, 3737.

6914 20 21.3 +42 10 Irregular diffuse nebulosity 4' x 3'. 6 s.n.

6927 20 27.8 + 9 33 Small spindle 015 long; rather bright, nearly round center.

6928 20 28.0 + 9 35 1151014 in p.a. 110°. A rather bright two-branched spiral, with absorption

lane on south side. See Abs. Eff. 18 s.n. 6930 20 28.2 + 9 31 I13 x 012 in p.a. 10°; rather bright small nucleus; doubtless spiral. 28 s.n.

6933 20 28.7 +7 3 Non-existent.

6934 20 29.3 +7 4 Bright globular cluster 3' in diameter. 8 s.n.

6939 20 29.4 +60 18 A coarse cluster of small stars, about 8'x 6'.

6940 20 30.4 +27 58 A very open, sparse cluster of stars of magn. 12-13. 0 s.n.

6946 20 32.6 +59 48 Vol. VIII, Plate 62. Faint, open, nearly round spiral 8' in diameter. Bright,

slightly elongated nucleus; many almost stellar condensations in the whorls. 5 s.n. 6951 20 35.8 +65 45 Rather faint, symmetrical spiral 315 in diameter. Very bright, slightly oval

nucleus 012 long. 0-type. 2 s.n. 6960 20 41.5 +30 21 A wonderful object, over a degree in length, composed of bright filaments

like the "Net-work" Nebula. 0 s.n. 6981 20 48.0 —12 55 Small bright cluster 3' in diameter; globular; comparatively open. 13 s.n.

20 49 +59 30 Dark object in Cephewi. This irregular area is almost absolutely devoid of

stars. The general effect is better shown on portrait lens plates. 6995 20 53 +30 50 Vol. VIII, Plates 63. The beautiful "Net-work" Nebula in Cygnus. 1?3 long.

Too large to be recorded in its entirety on a Crossley plate; there are fainter extensions to the south which are not shown in Plate,63. 2 s.n. 7000 20 55.2 +43 56 The great "America" nebula; too large to be recorded by the Crossley Reflector,

except in sections. The "Isthmus" region is full of interesting detail and shows a marked cutting off of faint stars on each side; the "Canada" region is a mass of diffuse nebulosity with no detailed structure and is of little interest. 0 s.n.

The northern "coal-sack." Of little interest with an instrument of this focal length. 0 s.n.

A compact cluster of faint stars 1' in diameter. Difficult to determine whether or not it contains nebulosity. It apparently has an almost stellar nucleus, and certainly shows some spiral arrangement. 3 s.n.

Planetary. 0 s.n.

Planetary. I? s.n.

Vol. VIII, Plate 65. An interesting mass of diffuse nebulosity 12'x 10', surrounding a star of magn. 7. The central parts are very bright, not "eF" as described in the N. G. C. Shows a wealth of structural detail. Marked obliteration of fainter stars over an area 35' in diameter. 0 s.n.

Planetary. 0 s.n.

Planetary. 0 s.n.

A coarse, faint, rather irregular cluster about 4' in diameter. 0 s.n.

Slightly oval; 014 long; much brighter at center; probably spiral. 2 s.n.

M. 15. A bright, unusually beautiful globular cluster 8' in diameter. 17 s.n.

M. 2. Fine globular cluster 7' in diameter. 8 s.n.

Planetary.

M. 30. Bright globular cluster 5' in diameter. 25 s.n.

Faint; binuclear; 016 long. 1 s.n.

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