Historical Identification: Per Dreyer, IC 4750 (= DeLisle Stewart #498, 1860 RA 18 29 49, NPD 153 05) is "most extremely faint, extremely small, round, 11th magnitude star 0.5 arcmin to northwest". The position precesses to RA 18 43 02.2, Dec -62 57 36, about 0.7 arcmin north of the galaxy listed above, there is nothing else nearby, and although perhaps involving a typographical error, the star 1.5 arcmin to the northwest makes the identification certain.
Physical Information: Based on a recessional velocity of 4815 km/sec, IC 4750 is about 225 million light years away. Given that and its apparent size of 1.2 by 0.6 arcmin, it is about 80 thousand light years across.

Historical Identification: Per Dreyer, IC 4751 (= DeLisle Stewart #501, 1860 RA 18 30 11, NPD 152 14) is "very faint, very small, round, brighter middle". The position precesses to RA 18 43 11.2, Dec -62 06 33, just under an arcmin west of the galaxy listed above, and between that and the reasonable consistency of Stewart's measurements for this and the galaxy just to its east (IC 4753), the identification is certain.
Physical Information: Apparent size 1.25 by 0.7 arcmin.

Historical Identification: Per Dreyer, IC 4752 (= DeLisle Stewart #502, 1860 RA 18 30 14, NPD 154 13) is "extremely faint, very small, round, very faint star 1 arcmin southeast". The position precesses to RA 18 43 45.5, Dec -64 05 29, only half an arcmin south of the galaxy listed above, and the star just under an arcmin southeast of the galaxy makes the identification certain.
Physical Information: Apparent size 0.7 by 0.6 arcmin.

Historical Identification: Per Dreyer, IC 4753 (= DeLisle Stewart #503, 1860 RA 18 30 29, NPD 152 14) is "very faint, very small, round, brighter middle". The position precesses to RA 18 43 29.1, Dec -62 06 29, just off the western rim of the galaxy listed above, and between that and the reasonable consistency of Stewart's measurements for this and the galaxy just to its west (IC 4751), the identification is certain.
Physical Information: Apparent size 0.9 by 0.75 arcmin.

Historical Identification: Per Dreyer, IC 4754 (= DeLisle Stewart #504, 1860 RA 18 30 53, NPD 152 07) is "extremely faint, pretty small, round, stellar nucleus, perhaps ring". The position precesses to RA 18 43 51.3, Dec -61 59 24, just off the western rim of the galaxy listed above, and the description fits, so the identification is certain.
Physical Information: Apparent size 1.4 by 1.3 arcmin.

Historical Identification: Per Dreyer, IC 4755 (= DeLisle Stewart #505, 1860 RA 18 31 34, NPD 153 49) is "very faint, very small, extremely extended 90°, stellar nucleus". The position precesses to RA 18 44 58.5, Dec -63 41 13, just barely above the northern rim of the galaxy listed above and the description fits, so the identification is certain.
Physical Information: Apparent size 1.3 by 0.35 arcmin.

Historical Identification: Per Dreyer, IC 4756 (= Bailey, 1860 RA 18 32 02, NPD 84 40) is a "cluster, compressed". The position precesses to RA 18 38 54.9, Dec +05 27 13, close to the center of the relatively large cluster, so the identification is certain.
Discovery Note: In his very popular "Celestial Ojects for Common Telescopes" (originally published in 1859, and reprinted many times over the years) Webb stated "Very large subdivided group, chiefly 9 and 10 mgs. (1880 RA)±18h 32m, (Dec)+5° 5'." This corresonds to J2000 RA 18 37 55, Dec +05 11 05, on the southwestern outskirts of IC 4756, and the description fits, so it appears that Webb observed the cluster at some time prior to 1859, but his book was intended for the general public, not serious astronomers, so Dreyer would not have had any reason to suspect that it contained any new discoveries, and Bailey's much later paper was the first notice he took of the cluster.
Physical Information: Apparent size 40 arcmin?

Historical Identification: Per Dreyer, IC 4757 (= DeLisle Stewart #506, 1860 RA 18 32 05, NPD 147 18) is "extremely faint, extremely small, considerably extended 50°". The position precesses to RA 18 44 02.0, Dec -57 10 16, only 0.9 arcmin east southeast of the galaxy listed above, and the description fits, so the identification is certain.
Physical Information: Apparent size 1.45 by 0.55 arcmin.

Historical Identification: Per Dreyer, IC 4758 (= DeLisle Stewart #509, 1860 18 32 23, NPD 155 53) is "very faint, small, round". The position precesses to RA 18 46 23.8, Dec -65 45 00, less than 0.7 arcmin northeast of the galaxy listed above, and there is nothing else nearby, so the identification is certain.
Physical Information: Apparent size 1.15 by 0.8 arcmin.

Historical Identification: Per Dreyer, IC 4759 (= DeLisle Stewart #507, 1860 RA 18 32 25, NPD 153 13) is "extremely faint, extremely small, round". The position precesses to RA 18 45 39.6, Dec -63 05 04, within the northwestern outline of the galaxy pair listed above, and there is nothing else nearby, so the identification is certain.
Physical Information: The northwestern member of the pair (PGC 62366) has a recessional velocity of 4980 km/sec, while the southeastern member (PGC 62367) has a recessional velocity of 4920 km/sec. Since they are obviously interacting, their average recessional velocity (4950 km/sec) is the best indicator of their distance (no other distance estimates being available at this time). Based on that, IC 4759 is about 230 million light years away. Given that and its apparent size of 1.05 by 0.35 arcmin, PGC 62366 and its tail are about 70 thousand light years across, PGC 62367's overall apparent size of 1.2 by 0.35 arcmin corresponds to about 80 thousand light years, and the entire system's apparent size of 1.4 by 0.7 arcmin corresponds to about 95 thousand light years.

Historical Identification: Per Dreyer, IC 4760 (= DeLisle Stewart #508, 1860 RA 18 32 31, NPD 153 05) is "extremely faint, very small, round, faint star 1 arcmin northwest". The position precesses to RA 18 45 43.4, Dec -62 57 03, just off the northwestern rim of the galaxy listed above, and the star 0.8 arcmin to its northwest makes the identification certain.
Physical Information: Apparent size 0.9 by 0.75 arcmin.

Historical Identification: Per Dreyer, IC 4761 (= Frost #1155, 1860 RA 18 32 41, NPD 142 59) is "very faint, brighter middle, doubtful". The position precesses to RA 18 43 55.4, Dec -52 51 13, practically dead center on the galaxy listed above, so the identification is certain.
Physical Information: Apparent size 1.6 by 1.25 arcmin.

Historical Identification: Per Dreyer, IC 4762 (= Bigourdan #332, 1860 RA 18 32 53, NPD 22 16) is "very faint, extremely small, cluster or a star with nebulosity". The position precesses to RA 18 32 29.8, Dec +67 50 39, about 0.8 arcmin south of the pair of stars listed above. As it happens, Bigourdan's 1897 Comptes Rendus paper involved a small error in reducing the original observations for his #332 from the equinox of 1900 to that of 1860, and Dreyer used those (incorrect) values in the IC2 entry. But as noted by Corwin, precessing the original observations (as shown in Bigourdan's "big list") yields a position that falls right on the western member of the pair of stars, making the identification certain.

Historical Identification: Per Dreyer, IC 4763 (= Bigourdan #333, 1860 RA 18 33 36, NPD 22 59) is "very faint, perhaps nebulous star; (NGC) 6677 near". The position precesses to RA 18 33 28.7, Dec +67 07 49, less than half an arcmin southwest of the galaxy listed above, and the reference to the nearby galaxy makes the identity certain. At the time of Bigourdan's observation, NGC 6679 was thought to be several arcmin to the north, so there was no way for Bigourdan or Dreyer to realize that this was that object; hence the duplicate listing.
Physical Information: Given the duplicate listing, see NGC 6679 for anything else.

Historical Identification: Per Dreyer, IC 4764 (= DeLisle Stewart #510, 1860 RA 18 33 41, NPD 153 37) is "most extremely faint, extremely small, brighter middle". The position precesses to RA 18 47 01.6, Dec -63 28 48, only 0.7 arcmin west of the center of the galaxy listed above, and there is nothing else nearby, so the identification is certain.
Physical Information: Apparent size 1.25 by 0.35 arcmin.

Historical Identification: Per Dreyer, IC 4765 (= DeLisle Stewart #511, 1860 RA 18 33 54, NPD 153 28) is "very faint, small, round, brighter middle". The position precesses to RA 18 47 12.1, Dec -63 19 46, on the western rim of the nucleus of the galaxy listed above, and well within its extended outline, so the identification is certain.
Physical Information: Apparent size 4.6 by 2.1 arcmin.

Historical Identification: Per Dreyer, IC 4766 (= DeLisle Stewart #512, 1860 RA 18 34 12, NPD 153 25) is "extremely faint, extremely small, brighter middle". The position precesses to RA 18 47 29.2, Dec -63 16 42, just over an arcmin northwest of the galaxy listed above, and save for galaxies accounted for by Stewart's other observations, there is nothing else nearby that he could have detected, so the identification is certain.
Physical Information: Apparent size 1.45 by 0.45 arcmin.

Historical Identification: Per Dreyer, IC 4767 (= DeLisle Stewart #513, 1860 RA 18 34 17, NPD 153 33) is "extremely faint, extremely small, much extended 25°, considerably brighter middle". The position precesses to RA 18 47 36.3, Dec -63 24 41, less than 0.7 arcmin southwest of the center of the galaxy listed above, the description fits, there is nothing else nearby, and the relative consistency of Stewart's (small) positional error for this and IC 4764 makes the identification certain.
Physical Information: Apparent size 1.9 by 0.5 arcmin.

Historical Identification: Per Dreyer, IC 4768 (= Bigourdan #334, 1860 RA 18 34 22, NPD 95 39) is a "cluster, double, stars scattered". [Bigourdan's original description is (translated and paraphrased): "A pair of clusters (designated I and II). (I) occupies a rectangle 30 arcmin in declination by 15 arcmin in right ascension, formed of scattered stars, with 6 or 7 stars of magnitude 10, several of magnitudes 11 and 12, but most are fainter or much fainter. (II) lies 30 seconds of time east and 10 arcmin north of (I), and is a rounded cluster about 8 arcmin diameter, containing 4 or 5 stars of magnitude 9.5 to 10 and numerous fainter stars, though not as numerous as those in (I). The mean position of the pair is (1900) RA 18 36 25, Dec -05 37."] Bigourdan's position precesses to (1860) RA 18 34 17, NPD 95 39, but he reported the position in Comptes Rendus as RA 18 34 22, NPD 95 39, which is what Dreyer recorded. I have used Bigourdan's original position in precessing to J2000 RA 18 41 45, Dec -05 31 27, which is close to the right ascension listed above for the northeastern cluster (II), and halfway between my declination estimates for (I) and (II), so the identification seems as certain as the star-filled field can allow. Corwin's positions are separated by 43 seconds of time and 16 arcmin; for (I) I have used the center of the brightest blob, so the declinations differ by only 14 arcmin.
Physical Information: Based on Bigourdan's description, the apparent size of (I) is about 30 by 15 arcmin; of (II), about 8 arcmin. Based on (Croatian?) visual observers' reports, this is not an easy object, with the brighter parts of the clusters barely standing out against the background of the Milky Way, and the fainter parts of (I) completely disappearing into that background. One observer appears to have seen only (II), estimating that it is perhaps 5 by 10 arcmin across, with half a dozen or so brighter stars and a few dozen stars overall; the other appears to have observed the entire structure, with (II) standing out as a faint blob, but (I) looking more just a part of the Milky Way, standing out mostly because of its contrast with the dark absorption region to its south. In fact, odds are that none of the stellar blobs are acually physical clusters, but merely regions that appear separated from other parts of the Milky Way by varying amounts of absorption clouds lying between us and them.

Historical Identification: Per Dreyer, IC 4769 (= DeLisle Stewart #514, 1860 RA 18 34 24, NPD 153 17) is "extremely faint, very small, much extended 170°, considerably brighter middle". The position precesses to RA 18 47 39.0, Dec -63 08 40, on the northwestern outline of the galaxy listed above, and the description fits, so the identification is certain.
Physical Information: Based on a recessional velocity of 4535 km/sec, IC 4769 is about 210 million light years away, in good agreement with redshift-independent distance estimates of 165 to 210 million light years. Given that and its apparent size of 1.9 by 1.2 arcmin, it is about 115 thousand light years across. Because of its bright nucleus, it is listed as a Seyfert galaxy (type Sy 2).

Historical Identification: Per Dreyer, IC 4770(= DeLisle Stewart #515, 1860 RA 18 34 47, NPD 153 31) is "most extremely faint, extremely small, brighter middle". The position precesses to RA 18 48 05.6, Dec -63 22 35, only 0.7 arcmin northwest of the galaxy listed above, and there is nothing else nearby, so the identification is certain.
Physical Information: Apparent size 0.8 by 0.55 arcmin.

Historical Identification: Per Dreyer, IC 4771 (= DeLisle Stewart #516, 1860 RA 18 35 00, NPD 153 23) is "extremely faint, extremely small, round, brighter middle". The position precesses to RA 18 48 16.4, Dec -63 14 33, only 0.9 arcmin west of the galaxy listed above, and there is nothing else nearby that Stewart could have observed, so the identification is certain.
Physical Information: Apparent size 1.2 by 0.6 arcmin.

Historical Identification: Per Dreyer, IC 4772 (= Howe list II (#12), 1860 RA 18 35 22, NPD 50 06.0) is "extremely faint, extremely small; (NGC) 6685 two seconds of time east, 2.7 arcmin south". The position precesses to RA 18 39 57.6, Dec +40 01 39, right on the galaxy listed above, and even if the position weren't so accurate, the reference to NGC 6685 would make the identification certain.
Physical Information: Apparent size 0.75 by 0.6 arcmin.

Historical Identification: Per Dreyer, IC 4773 (= DeLisle Stewart #519, 1860 RA 18 35 44, NPD 160 04) is "extremely faint, difficult". The position precesses to RA 18 51 18.9, Dec -69 55 10, on the northern rim of the galaxy listed above, and there is nothing else nearby, so the identification is certain.
Physical Information: Apparent size 1.7 by 0.9 arcmin.

Historical Identification: Per Dreyer, IC 4774 (= DeLisle Stewart #517, 1860 RA 18 36 08, NPD 148 04) is "extremely faint, small, irregular figure, much brighter middle". The position precesses to RA 18 48 12.6, Dec -57 55 26, only 0.7 arcmin north of the galaxy listed above, the description fits, and there is nothing else nearby, so the identification is certain.
Physical Information: Apparent size 0.9 by 0.9 arcmin.

Historical Identification: Per Dreyer, IC 4775 (= DeLisle Stewart #518, 1860 RA 18 36 35, NPD 147 19) is "extremely faint, extremely small, much extended 15°, suspected". The position precesses to RA 18 48 31.1, Dec -57 10 22, less than an arcmin northeast of the galaxy listed above (and not far from its northeastern rim), the description fits, and there is nothing else nearby, so the identification is certain.
Physical Information: Apparent size 1.5 by 0.3 arcmin.

Historical Identification: Per Dreyer, IC 4776 (= Fleming #77, 1860 RA 18 36 40, NPD 123 29) is a "planetary, stellar". The position precesses to RA 18 45 51.7, Dec -33 20 37, on the eastern outline of the planetary nebula listed above, and there is nothing similar nearby, so the identification is certain.
Physical Information: Apparent size 18 by 10 arcsec.

Historical Identification: Per Dreyer, IC 4777 (= Frost #1156, 1860 RA 18 36 52, NPD 143 17) is "very faint, planetary, a little extended". The position precesses to RA 18 48 08.2, Dec -53 08 23, only 0.6 arcmin northwest of the center of the galaxy listed above, and there is nothing else nearby, so the identification is certain.
Physical Information: Apparent size 0.75 by 0.7 arcmin. Listed as a Seyfert galaxy (type Sy2).

Historical Identification: Per Dreyer, IC 4778 (= DeLisle Stewart #520, 1860 RA 18 37 07, NPD 151 51) is "considerably faint, very small, considerably extended 35°". The position precesses to RA 18 49 59.6, Dec -61 42 10, just under an arcmin north of the galaxy listed above, the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Apparent size 1.05 by 0.85 arcmin.

Historical Identification: Per Dreyer, IC 4779 (= DeLisle Stewart #521, 1860 18 37 19, NPD 153 09) is "most extremely faint, extremely small, extremely faint star 0.3 arcmin to west". The position precesses to RA 18 50 31.0, Dec -63 00 05, just north of the northern outline of the galaxy listed above, and the star on its western rim makes the identification certain.
Physical Information: Apparent size 0.9 by 0.9 arcmin.

Historical Identification: Per Dreyer, IC 4780 (= DeLisle Stewart #522, 1860 RA 18 37 40, NPD 149 23) is "extremely faint, very small, a little extended 120°". The position precesses to RA 18 49 59.8, Dec -59 14 07, just over an arcmin north northeast of the galaxy listed above, the description fits, and there is nothing else nearby, so the identification is certain.
Physical Information: Apparent size 0.75 by 0.45 arcmin.

Historical Identification: Per Dreyer, IC 4781 (= DeLisle Stewart #523, 1860 RA 18 38 32, NPD 152 56) is "3 most extremely faint stars in nebulosity". The position precesses to RA 18 51 40.2, Dec -62 46 51, less than an arcmin north northeast of the galaxy listed above. Presuming the nucleus of the galaxy represents one of the three "stars" the description fits, and there is nothing else nearby, so the identification is certain.
Physical Information: Apparent size 1.0 by 0.7 arcmin.

Historical Identification: Per Dreyer, IC 4782 (= DeLisle Stewart #524, 1860 RA 18 39 16, NPD 145 38) is "most extremely faint, extremely small, suspected". The position precesses to RA 18 50 53.9, Dec -55 28 51, only 0.6 arcmin north of the galaxy listed above. The Bruce plate should have shown only the very small nucleus of such a low surface brightness galaxy, and probably didn't record its even fainter neighbor at all, so the description fits and the identification is essentially certain.
Physical Information: Apparent size 1.7 by 0.25 arcmin.

Historical Identification: Per Dreyer, IC 4783 (= DeLisle Stewart #525, 1860 RA 18 39 18, NPD 148 57) is "extremely faint, very small". The position precesses to RA 18 51 32.1, Dec -58 47 47, only an arcmin north of the galaxy listed above, and there is nothing else nearby, so the identification is certain.
Physical Information: Apparent size 1.1 by 0.9 arcmin.

Historical Identification: Per Dreyer, IC 4784 (= DeLisle Stewart #526, 1860 RA 18 39 36, NPD 153 34) is "considerably faint, small, round, brighter middle". The position precesses to RA 18 52 53.8, Dec -63 24 37, but there is nothing there. Per Corwin, Stewart made a 10 arcmin error in his declination (presumably a transcription error that put it too far south), and as a result the IC2 had the same error. Precessing a corrected version of Stewart's original position yields a position of RA 18 52 51.4, Dec -63 15 02, barely outside the northeastern outline of the galaxy listed above, so given the fact that even today single-digit errors are all too common, the identification is essentially certain. (Corwin suggests that Stewart might also have been able to detect the galaxy to the southeast of IC 4784, but the star on its northeastern rim probably made it hard for him to notice its nebular nature.)
Physical Information: Apparent size 1.75 by 1.4 arcmin.

Historical Identification: Per Dreyer, IC 4785 (= DeLisle Stewart #527, 1860 RA 18 40 40, NPD 149 24) is "extremely faint, very small, irregular figure, stellar nucleus". The position precesses to RA 18 52 59.1, Dec -59 14 31, just off the northeastern rim of the galaxy listed above, and there is nothing else nearby, so the identification is certain.
Physical Information: Apparent size 3.4 by 1.7 arcmin.

Historical Identification: Per Dreyer, IC 4786 (= DeLisle Stewart #528, 1860 RA 18 40 55, NPD 146 51) is "most extremely faint, extremely small, much extended 0°". The position precesses to RA 18 52 45.0, Dec -56 41 30, right on the northeastern rim of the galaxy listed above, the description fits, and although there is another galaxy not far to the north, it is too faint for Stewart to have observed, and does not fit the description; so the identification is certain.
Physical Information: Apparent size 0.75 by 0.2 arcmin.

Historical Identification: Per Dreyer, IC 4787 (= DeLisle Stewart #530, 1860 RA 18 41 05, NPD 158 51) is "extremely faint, diffuse". The position precesses to RA 18 56 06.1, Dec -68 41 09, right on the galaxy listed above, and there is nothing else nearby, so the identification is certain.
Physical Information: Apparent size 1.3 by 1.0 arcmin.

Historical Identification: Per Dreyer, IC 4788 (= DeLisle Stewart #529, 1860 RA 18 41 23, NPD 153 36) is "most extremely faint, extremely small, extremely extended 35°". The position precesses to RA 18 54 40.7, Dec -63 26 16, less than an arcmin north of the galaxy listed above, the description fits, and there is nothing else nearby, so the identification is certain.
Physical Information: Apparent size 1.3 by 0.2 arcmin.

Historical Identification: Per Dreyer, IC 4789 (= DeLisle Stewart #531, 1860 RA 18 41 24, NPD 158 44) is "extremely faint, extremely small, round". The position precesses to RA 18 56 22.1, Dec -68 34 06, on the eastern rim of the galaxy listed above, and there is nothing else nearby, so the identification is certain.
Physical Information: Apparent size 1.6 by 0.65 arcmin.

Historical Identification: Per Dreyer, IC 4790 (= DeLisle Stewart #532, 1860 RA 18 42 52, NPD 155 06) is "considerably bright, small, round, brighter middle". The position precesses to RA 18 56 34.4, Dec -64 55 56, on the southeastern rim of the galaxy listed above, and there is nothing else nearby, so the identification is certain.
Physical Information: Apparent size 1.3 by 0.8 arcmin.

Historical Identification: Per Dreyer, IC 4791 (= Burnham, 1860 RA 18 42 55, NPD 70 49.5) is a "nebula; 6th magnitude star 2 arcmin to east". The position precesses to RA 18 49 01.3, Dec +19 19 49, right on the galaxy listed above, and though (as noted by Corwin) Dreyer incorrectly placed the comparison star to the east, Burnham's paper states that the nebula is to the east, so the identification is certain.
Physical Information: Apparent size 1.0 by 0.9 arcmin.

Historical Identification: Per Dreyer, IC 4792 (= DeLisle Stewart #533, 1860 RA 18 43 56, NPD 146 35) is "most extremely faint, extremely small, much extended 160°, between 2 stars, suspected". The position precesses to RA 18 55 42.3, Dec -56 24 55, only 0.7 arcmin south of the galaxy listed above, the description fits, and there is nothing else nearby, so the identification is certain.
Physical Information: Apparent size 0.95 by 0.35 arcmin.

Historical Identification: Per Dreyer, IC 4793 (= DeLisle Stewart #534, 1860 RA 18 44 09, NPD 151 33) is "extremely faint, very small, considerably extended 130°". The position precesses to RA 18 56 55.1, Dec -61 22 46, about 1.2 arcmin north of the galaxy listed above, but the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Apparent size 1.2 by 0.5 arcmin.

Historical Identification: Per Dreyer, IC 4794 (= DeLisle Stewart #535, 1860 RA 18 44 12, NPD 152 15) is "faint, small, round, brighter middle". The position precesses to RA 18 57 08.0, Dec -62 04 45, only 0.7 arcmin north northwest of the galaxy listed above and there is nothing else nearby, so the identification is certain.
Physical Information: Apparent size 1.1 by 0.6 arcmin.

Historical Identification: Per Dreyer, IC 4795 (= DeLisle Stewart #536, 1860 RA 18 44 26, NPD 151 46) is "most extremely faint, extremely small, extremely extended 40°". The position precesses to RA 18 57 15.0, Dec -61 35 42, only 0.9 arcmin north of the galaxy listed above, the description fits, and there is nothing else nearby, so the identification is certain.
Physical Information: Apparent size 1.0 by 0.15 arcmin.

Historical Identification: Per Dreyer, IC 4796 (= Frost #1157, 1860 RA 18 44 56, NPD 144 23) is "14th magnitude, brighter middle, near edge of plate". The position precesses to RA 18 56 20.3, Dec -54 12 45, less than half an arcmin west of the outline of the galaxy listed above, and there is nothing else nearby that isn't otherwise accounted for, so the identification is certain.
Physical Information: Apparent size 1.7 by 0.9 arcmin.

Historical Identification: Per Dreyer, IC 4797 (= Frost #1158, 1860 RA 18 45 02, NPD 144 28) is "14th magnitude, brighter middle, near edge of plate". The position precesses to RA 18 56 27.1, Dec -54 17 44, right on the northern part of the galaxy listed above, so the identification is certain.
Physical Information: Apparent size 2.8 by 1.7 arcmin.

Historical Identification: Per Dreyer, IC 4798 (= DeLisle Stewart #537, 1860 RA 18 45 24, NPD 152 17) is "faint, small, round, brighter middle". The position precesses to RA 18 58 20.1, Dec -62 06 30, on the northern rim of the galaxy listed above, and there is nothing else nearby, so the identification is certain.
Physical Information: Apparent size 1.75 by 1.1 arcmin.

Historical Identification: Per Dreyer, IC 4799 (= DeLisle Stewart #539, 1860 RA 18 45 28, NPD 154 06) is "very faint, small, round, stellar nucleus, ring, 2 wisps". The position precesses to RA 18 58 52.2, Dec -63 55 27, on the northwestern rim of the galaxy listed above, the description fits, and there is nothing else nearby, so the identification is certain.
Physical Information: Apparent size 1.55 by 1.05 arcmin.