Elliptical Nebulae ---------+----------+--------------+----------- E0 | 17 | 18 | 11.40 1 | 13 | 14 | 11.43 2 | 14 | 15 | 11.52 3 | 10 | 11 | 11.99 4 | 13 | 14 | 11.95 5 | 6 | 6 | 10.97 6 | 7 | 8 | 10.93 7 | 5 | 5 | 11.02 Pec | 8 | 9 | 11.55 +----------+--------------+----------- Total | 93 | 23* | 11.53 ---------+----------+--------------+----------- Normal Spirals ---------+----------+--------------+----------- Sa | 49 | 21 | 11.69 b | 70 | 29 | 11.55 c | 115 | 49 | 11.75 Pec | 3 | 1 | 12.80 +----------+--------------+----------- Total | 237 | 59* | 11.68 ---------+----------+--------------+----------- Barred Spirals ---------+----------+--------------+----------- SBa | 26 | 44 | 11.66 b | 16 | 27 | 11.48 c | 15 | 26 | 11.87 Pec. | 2 | 3 | 11.70 +----------+--------------+----------- Total | 59 | 15* | 11.66 ---------+----------+--------------+----------- Irregular Nebulae ---------+----------+--------------+----------- | 11 | 3* | 11.34 ---------+----------+--------------+----------- Totals ---------+----------+--------------+----------- All types 400 100 11.63 ---------+----------+--------------+----------- * Percentages of 400, the total number of nebulae investigated. The percentages of the subtypes refer to the number of nebulae in the particular type. TABLE VI Frequency Distribution of Magnitudes ====================+=========+================ | Numbers of Nebulae Magnitude Interval +---------+----------+----- | E | S | All --------------------+---------+----------+----- 8.1– 8.5 | 0 | 2 | 2 8.6– 9.0 | 2 | 4 | 7 9.1– 9.5 | 4 | 6 | 11 9.6–10.0 | 7 | 7 | 19 10.1–10.5 | 7 | 13 | 20 10.6–11.0 | 8 | 14 | 32 11.1–11.5 | 9 | 24 | 49 11.6–12.0 | 21 | 57 | 88 12.1–12.5 | 20 | 52 | 86 12.6–13.0 | 10 | 33 | 51 --------------------+---------+----------+-----