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ter, 108 Nebulae, 141, 146 Neison, E., 108
Neptune, discovery of, 68-72 Newall, 89 New-
comb, 85 Newton, H.A., 124 Newton, I., 5,
19, 43, 49, 51-60, 62, 64, 68, 77, 79, 87,
90, 93, 94, 114, 127, 133 Nicetas, 16, 25
Niesten, 115 Nunez, P., 35
Olbers, H.W.M., 67 Omar, 11, 24 Op-
polzer, 13, 125 Oudemans, 129
Palitsch, G., 64 Parallax, solar, 85, 86
679