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DESCRIPTION-(Continued)

A fine, bright spiral 3' x 1.5 in p.a. 42°. Nucleus bright, somewhat elongated,
almost stellar. The whorls are rather compact, with numerous irregular con-
densations. 14 s.n

A small oval 0:5 long with bright center; no spiral structure discernible.
A compact, rather bright spiral 2' x 1.5 in p.a. 165°. Bright nucleus; the whorls
are broad and unmarked by condensations.

A fine, nearly edgwise spiral 7' x 0.8 in p.a. 170°; quite bright. Bright, elon-
gated 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 are no condensations. 16 s.n.

A faint oval patch 0:4 long; no structure apparent, but doubtless spiral.
Nearly round; about 14 in diameter; very faint on the periphery, increasing
to a quite bright, almost stellar nucleus; no spiral structure discernible.
Nearly round, 0.5 in diameter; small nucleus; slight traces of spiral character.
A faint patch of nebular matter about 0:3 in diameter, showing a faint nucleus
and some evidences of spiral structure.

A very faint, nearly round, open spiral 1:5 in diameter; stellar nucleus; several faint, almost stellar condensations. 12 s.n.

A minute oval 0:2 long, with an almost stellar nucleus; doubtless spiral.
There are two objects near this declination, one preceding, and the other follow-
ing the N. G. C. position. Both are very small, nearly round; no structure
apparent.

Fairly bright center; oval; 16 long; spiral.
Almost stellar; no structure visible.

Slightly elongated; almost stellar; no structure visible.

Very faint spindle 0.7 long. There is no object in the N. G. C. place for 5841. This nebula fits the descriptions F, S, E, though perhaps too faint to be seen visually.

Round, 1' in diameter; no structure apparent. Star at south does not appear to be physically connected with the nebula.

An elongated spiral 0:6 long; strong center; Andromeda type.

This is a faint but interesting p-type spiral. Stellar nucleus; nearly round ring 2:2 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 2:6 x 0.6 in p.a. 130°; apparently a p-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 0:2 long.

Vol. VIII, Plate 51. Very bright, 3' x 1' 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 0:8 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.

11' x 0.6 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 p-type spiral. Fairly bright nucleus, about which is an oval 18 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'. Reproduced in Publ. Astr. Soc. Pacfiic, October, 1912. 43 s.n.

Small, faint, nearly round spiral 0:6 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 p-type. 17 s.n.

A narrow spindle 2:5 long in p.a. 135°.

on the northeast side. See Abs. Eff.

Well-marked absorption lane effect

Slightly oval, 1' long. Center very bright, rather large, and without definite nucleus; no spiral structure discernible.

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DESCRIPTION-(Continued)

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."

of 1h 10m. 16 s.n.

Planetary. 14 s.n.

Non-existent? No trace in an exposure

A fine, moderately bright spiral 3' x 1'6 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 2 Scorpii. 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 extensions about 8'. 2 s.n.

Small spiral 2' x 0.7 in p.a. 0°. Bright almost stellar nucleus; two main whorls.

5 s.n.

A rather bright spiral of S-shape, 18 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 0.7 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 1:5 in diameter; main part of cluster 6'. 0 s.n.

Planetary. 0 s.n

A small, comparatively faint globular cluster, 15 in diameter. 1 s.n.

Rather faint, nearly round spiral 0.7 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 ap-
proximate to the globular type. 0 s.n.

Planetary. 0 s.n.

A remarkable vacant region in the Milky Way southeast of Ophiuchi. Shows almost no stars in an exposure of 1h 50m ̧ 0 s.n.

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

A small, rather sparse cluster of faint stars, about 2' in diameter. O 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.

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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DESCRIPTION-(Continued)

Planetary. 0 s.n.

There are distinct

A bright, very compact cluster, about 15 in diameter.
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.

Planetary. 0 s.n.

Bright, round, 0:3 in diameter; very close to 11 magn. star; 17' n.f. is a small,
faint spindle 15 long in p.a. 140°. 10 s.n.

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.
Round, 0.6 in diameter. Bright, rather large center; slight traces of spiral
character.

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.
Slightly oval, 1:2 long. Bright, rather large nucleus; whorls indistinct. 16 s.n.
Nearly round, 14 in diameter. Bright, rather large nucleus; no certain evi-
dence of spiral character.

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 s.n.

A very small cluster of faint stars; brighter center 0:2 in diameter; whole cluster about 0.8. Of globular type? 0 s.n.

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.

6517

17 56.4

17 56.6

-27 50

6520

17 57.1

-27 53

6523

17 58

-24

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+66 38

Planetary. 16 s.n.

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

Planetary. 0 s.n.

Planetary. 0 s.n.

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The larger

Two dark nebulae, noted by Barnard in Ap. Jour., Dec., 1913.
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 clear-
cut, and the transition less abrupt than in the object at 17h 56m6. Pro-
fessor Barnard's portrait lens photographs of these objects are reproduced
in Lick Obs. Publ., 11, Plates 54 and 55. 0 s.n.

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.

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 0:3 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)

0 s.n.

Bright globular cluster 4' in diameter. M. 28.
Planetary. 1 s.n.
Moderately bright spiral 3' x 11 in p.a. 40°. Faint hazy nucleus and several
hazy condensations in the compact and rather patchy whorls. 8 s.n.

Bright globular cluster 3′ in diameter. M. 69. 0 s.n.

Description in Bulletin 219 in error; a small and relatively inconspicuous eluster; probably not globular.

A slightly oval type spiral 17 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 s.n.

Planetary.

Planetary.

M. 22. A beautiful globular cluster, 12′ or more in diameter. 0 s.n.
Rather faint spiral 25 x 05 in p.a. 170°. Very faint nucleus. Well-marked
absorption effect on eastern side; whorls compact and indistinct. See Abs.

Eff. 49 s.n.

M. 70. Bright condensed cluster 2′ in diameter; doubtless globular, 0 s.n. Binuclear; the nuclei are 77 apart in p.a. 82°. Rather faint; no traces of spiral character. Not a planetary; shows continuous spectrum. 0:3 long.

21 s.n.

Described as a planetary. Search with the slitless spectroscope disclosed no object of planetary type anywhere in this region.

Planetary.

M. 11. Bright, rather open cluster 6′ 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. VIII, 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 1.5 in diameter. Apparently not globular. An irregular rift runs in to the center. 0 s.n.

Described as a stellar planetary. Search with the slitless spectroscope disclosed no object of planetary type in this region.

Planetary. 0 s.n.

Planetary. 0 s.n.

M. 56. Rather bright, condensed cluster 3' in diameter. Probably globular. O s.n.
Fine "hole" or dark nebula 10' x 4'.

Planetary. 2 s.n.

6766

19 7.1

+46 6

6772

II 4846

6779

19 9.4 19 11.0 19 12.7 19 12.8

2 53 9 14 +30 0

6778

19 13.1

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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
30m, 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.
R Cygni. Exposure of 1h 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 "Dumb-bell" Nebula in Vulpecula. Planetary. 0 s.n.

DESCRIPTION-(Continued)

M. 75. Bright, compact globular cluster 2' in diameter. Greatly condensed at center. 9 s.n.

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A moderately bright, irregular, crescent-shaped band of diffuse nebulosity 18' long; network formation. O s.n.

Planetary. 0 s.n.

Vol. VIII, Plate 61. Annular nebula in Cygnus. Planetary. 0 s.n.

Planetary. 3 s.n.

Planetary. 4 s.n.

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Planetary. 0 s.n.
Planetary. 0 s.n.

+19 41

0 s.n.

+38 6

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Moderately bright oval 0:2 long; no structure apparent. Not planetary; shows
continuous spectrum. 0 s.n.

Faint diffuse nebulosity 2′ in diameter about the star B. D. +41°, 3731.
Bright diffuse nebulosity of Pleiades type 2' in diameter, surrounding the star
B.D. +41°, 3737.

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Small spindle 0:5 long; rather bright, nearly round center.

1:5 x 0.4 in p.a. 110°. A rather bright two-branched spiral, with absorption lane on south side. See Abs. Eff. 18 s.n.

1:3 x 0.2 in p.a. 10°; rather bright small nucleus; doubtless spiral. 28 s.n. Non-existent.

Bright globular cluster 3′ in diameter. 8 s.n.

A coarse cluster of small stars, about 8' x 6'.

A very open, sparse cluster of stars of magn. 12–13. 0 s.n.

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.

Rather faint, symmetrical spiral 35 in diameter. Very bright, slightly oval nucleus 0:2 long. p-type. 2 s.n.

A wonderful object, over a degree in length, composed of bright filaments
like the "Net-work" Nebula. 0 s.n.

Small bright cluster 3' in diameter; globular; comparatively open.
13 s.n.
Dark object in Cepheus. This irregular area is almost absolutely devoid of
stars. The general effect is better shown on portrait lens plates.
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.

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.

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

A compact cluster of faint stars l' 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. 1 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. obliteration of fainter stars over an area 35' in diameter. 0 s.n.

Planetary. 0 s.n.
Planetary. 0 s.n.

Marked

A coarse, faint, rather irregular cluster about 4' in diameter. O s.n.
Slightly oval; 0:4 long; much brighter at center; probably spiral. 2 s.n.
M. 15. A bright, unusually beautiful globular cluster 8' in diameter.
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; 0:6 long. 1 s.n.

17 s.n.

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